Always check to be sure that the stones used in your essence or elixir are non-toxic.  If you are unsure, essences and elixirs can be prepared in an alternative manner.  In this method, stones are placed inside of a small glass container (containing no water).  This way, the stones do not make direct contact with the water, but their energetic vibration is allowed to be transmitted through the conductive glass container into the water.  Since the stones do not directly contact the water, it is safe to be used for an essence or elixir (with the exception of radioactive stones!)  Please note that radioactive stones should not EVER be used in the preparation of elixirs or essences, not even by the alternative method!

 *These crystals are safe to work with (carry, wear, etc), unless otherwise stated. They are toxic for creating gem elixirs.*

-A-

Abalone - Harmful or toxic stone. Organic, may contain bacteria as well as pollutants from toxic materials from the water it forms in.

Acanthite – “This mineral’s softness precludes its use in the normal method of preparation of an elixir.” (Love is in the Earth - Updated 79)

Achondrite – Please see Meteorite.

Achroite – Please see Tourmaline.

Actinolite – “May contain asbestos. Not recommended for elixirs.” (Hibiscus)
          “Fibrous form is a type of asbestos.  Not recommended for elixirs.” (Healing Crystals)

Adamite – “Toxic or harmful stone.  Contains zinc and copper.” (Harton)
          “Contains arsenic and some copper.” (Hibiscus)
          “Contains Arsenic (Arsenate) and trace amounts of copper which is toxic.” (Healing Crystals)

Ajoite – “Contains aluminum and copper.” (Hibiscus)
          “Contains aluminum, copper.” (Healing Crystals)

Alexandrite – “Contains aluminum.” (Hibiscus) 
          “Contains aluminum.” (Healing Crystals)

Algodonite – “The slight arsenide content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 37)

Allingite – Please see Amber.

Almandine – Please see Garnet.

Altaite – “This lead base of this mineral precludes its use in the normal method of preparation of an elixir.” (Love is in the Earth - Updated 104)
          “Due to the lead content of this mineral, an elixir preparation via the normal method is not recommended. However, an elixir (non-normal method) is recommended, due to the ability of the energy to stimulate the physical form.” (Supplement A 310)

Alum – “This material is extremely soft and fragile, and it melts in water.” (Stein 13) 
          “Should never be washed or held under water.” (Gienger 13)

Alurgite – “The softness and fragility of this mineral precludes its use in the normal method of preparation of an elixir.” (Love is in the Earth - Updated 106)

Amazon Jade – Please see Amazonite.

Amazon Stone – Please see Amazonite.

Amazonite – “Use with caution, the color is a result of traces of copper, which is toxic.” (Jentoft) 
This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Toxic or harmful stone. Contains copper.” (Harton) 
          “Do not use…for internal use.  Contains copper.” (Sullivan) 
          “Its intense color is caused by the presence of lead.” (Kennedy 198)
          “Contains copper.” (Hibiscus) 
          “Trace amounts of copper which is toxic.” (Healing Crystals)

Amazonstone – Please see Amazonite.

Amber – “…Acts to purify ones body, mind, and spirit when…used as an elixir.” (Love is in the Earth – Updated 109) 
          “Toxic or harmful stone.  Toxic dust, fumes, possible ingestive toxicity.” (Harton)  
          I have found much information that contradicts this statement and claims that Amber is completely non-toxic. This is the only source that I have read claiming that Amber should be used with caution. My suggestion would be to use in an elixir prepared with the alternative method just to be safe until more research can be done on this claim.

Amber, Pit – Please see Amber.

Amblygonite - “Contains aluminum.” (Healing Crystals)

Andalusite - “Contains aluminum.” (Healing Crystals)

Andersonite – “The delicacy of this mineral precludes its use in the normal method of preparation of an elixir” (Supplement A 45).

Andradite - Please see Garnet.

Angelite – This stone is too soft and may dissolve if used in the normal method of preparation of an elixir. 
          “Do not use in a gemstone essence as it is very soft and may melt in the water.” (Stein xv) 
          “Toxic or harmful stone. Contains lead and sulphur.” (Harton)
          Please also see Anhydrite.

Anhydrite, Blue Druzy – “Avoid soaking this stone in water, as it will deteriorate and dissolve.” (Stein 25)
          Please also see Angelite.

Anhydrite, Purple – “Avoid soaking it in water, as the stone is soft and will deteriorate and dissolve.” (Stein 26)
          Please also see Angelite.

Antigorite – “The softness and lamellar structure of this mineral precludes its use in the normal method of preparation of an elixir.” (Love is in the Earth - Updated 123)

Antimonite – “Do not use…for internal use. Contains lead.” (Sullivan)

Anyolite – Please see Ruby and Zoisite.

Aphrizite - Please see Tourmaline.

Apollo Stone – “The content of Uranium in this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 253)

Aquamarine - Toxic or harmful stone. Contains aluminum.
          Please also see Beryl.

Aragonite – “Toxic or harmful stone.” (Harton)

Argentite – The softness of this mineral precludes its use in the normal method of preparation of an elixir.” (Love is in the Earth - Updated 131)

Ash, Volcanic – “The normal method of preparation of an elixir of the volcanic ash is only recommended if adequate filtering equipment is available.” (Love is in the Earth - Updated 132) This mineral should only be used in an elixir prepared via the alternative method of preparation.

Atacamite – “Poisonous (copper).” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation. 
          “Toxic or harmful stone. Contains copper.” (Harton)
          “Contains copper.” (Hibiscus) 
          “Contains poisonous/toxic copper.” (Healing Crystals)

Auricalcite – Please see Aurichalcite.

Aurichalcite - “Poisonous (zinc and copper).” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation. 
          “Toxic or harmful stone. Contains copper.” (Harton) 
          “Do not use…for internal use. Contains zinc and copper.” (Sullivan)
          “Contains zinc and copper.” (Hibiscus) 
          “Contains zinc and copper which are toxic.” (Healing Crystals)

Autunite – “Do not use this mineral in the preparation of an elixir via the normal method.  It is recommended that the use of Autunite be confined to an established location in ones environment, from which the powers would emanate.” (Love is in the Earth - Updated 135)

Axinite - “Contains aluminum, iron.” (Healing Crystals)

Azel, Royal – Please see Sugilite.

Azurite – “Never attempt to prepare an essence from this stone since it gives off sulfur when mixed with water.” (Bourgault 55)  This mineral should only be used in an elixir prepared via the alternative method of preparation. 
          “Poisonous (copper).” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation. 
          “Do not clean nodules in water.” (Lilly 188)  This mineral should only be used in an elixir prepared via the alternative method of preparation. 
          “Toxic or harmful stone.  Contains copper.” (Harton)  
          “Do not use…for internal use.  Contains copper.” (Sullivan) 
          “Contains copper.” (Hibiscus) 
          “Contains copper, toxic.” (Healing Crystals)

-B-

Barite – “Do not use…for internal use. Contains lead, zinc, and barium.” (Sullivan)

Bastnaesite - “The chemical makeup of Bastnaesite does contain toxic elements which can react when combined with water.” (Healing Crystals)

Beaverite – “Since the mineral is rather crumbly, preparation of an elixir via the normal method is not recommended.” (Love is in the Earth - Updated 149)

Beryl - Toxic or harmful stone.  Contains aluminum.
          “Contains aluminum” (Hibisucs)
          “Contains aluminum.” (Healing Crystals).

Beudantite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 155)

Bindheimite – “The slight lead content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 59)

Bismuth - “Heavy metal.” (Healing Crystals)

Bixbite – Please see Beryl.

Bloodstone – Please see Hematite.

Boji Stone ® - “The stones...may disintegrate after discharging their energy to enhance the well-being and stability of the environment in which they were placed...beware that they may disappear.” (Love is in the Earth - Updated 162).  This mineral should only be used in an elixir prepared via the alternative method of preparation. 
          “Unfit (contains some sulfur).  There is some secrecy regarding its contents-which means you really should not drink it.” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation. 
          “Toxic or harmful stone.  May contain sulphur.” (Harton) 
          “Do not use…for internal use.  Contains sulfur.” (Sullivan) 
          “Contains some sulphur, Pyrite and/or marcasite.” (Hibiscus) 
          “Contains sulfur, Pyrite and/or Marcasite which are toxic; also could be a fire hazard.” (Healing Crystals)
          Please also see Concretion. 

Borax – “Due to the solubility/fragility of Borax, do not prepare an elixir of this mineral via the normal method.” (Supplement Z 51)

Bornite – Please see Chalcopyrite.

Boulangerite – “Preparation of an elixir via the normal method is not recommended.” (Love is in the Earth - Updated 167)

Brazilianite - “Contains aluminum - not recommended to use in its raw form.” (Healing Crystals)

Brewsterite – “Do not prepare an elixir of this mineral via the normal method.” (Supplement Z 55)

Bronchantite – “Unfit and poisonous (copper).” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Do not use…for internal use.  Contains copper.” (Sullivan)
          “Toxic or harmful stone.  Contains copper.” (Harton)
          “Contains copper.” (Hibiscus)
          “Copper hydrated sulfate, toxic.” (Healing Crystals)

-C-

Calaverite – “Do not use this mineral as an elixir.” (Love is in the Earth - Updated 178)

Carbon-C60 – “Do not prepare an elixir of this mineral via the normal method. (Supplement Z 73)

Cairngorm – Please see Quartz, Smoky.

Carnigorm – Please see Quartz, Smoky.

Carnotite – “Preparation of an elixir via the normal method is not recommended.” (Love is in the Earth - Updated 184)

Cavansite – “Do not prepare an elixir of this mineral via the normal method.” (Supplement A 316)
          “Contains copper” (Hibiscus).

Celestine – Please see Celestite.

Celestite – This stone is soft and may dissolve if used in the normal method of preparation of an elixir.
          "Contains strontium." (Hibiscus)

Cerussite – “No elixir. Wash hands after contact with lead ore.” (The Crystal Healer 81)
          “As an elixir it is an excellent energizer and protector of house plants; it can also be used in the garden or field situation to help relieve infestations. It has been used in the home environment to protect against pests.” (Love is in the Earth - Updated 191)
          “Toxic or harmful stone. Contains sulphur and molybdenum.” (Harton)

Chalcanthite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 192)
          “Poisonous (copper).” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “This stone is very fragile; do not put it in water or place in direct sunlight.” (Stein 51)
          “Toxic or harmful stone. Contains copper.” (Harton)
          “Do not use…for internal use. Contains copper.” (Sullivan)
          “Contains copper.” (Hibiscus)
          “Should never be washed or held under water.” (Gienger 13)

Chalcopyrite – “Poisonous (copper and sulfur).” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Toxic or harmful stone. Contains copper and sulphur.” (Harton)
          “Do not use…for internal use. Contains copper and sulfur.” (Sullivan)
          “Contains copper and sulphur.” (Hibiscus)
          “A toxic stone and should be…used only in tumbled form, especially in elixirs.” (New Crystals 92)
          “Contains copper and sulfur which can be toxic.” (Healing Crystals)

Chameleon Stone – Please see Alexandrite.

Chessy Copper – Please see Azurite.

Chessylite – Please see Azurite.

Chondrite – Please see Meteorite.

Chrysacolla – Please see Chrysocolla.

Chryselectrum – Please see Amber.

Chrysoberyl - “Contains aluminum.” (Healing Crystals)

Chrysocolla – “Poisonous (copper).” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Do not consume as a gemstone essence as it is poisonous to ingest.” (Stein xv)
          “Toxic or harmful stone. Contains copper.” (Harton)
          “Do not use…for internal use. Contains copper.” (Sullivan)
          “Contains copper.” (Hibiscus) 
          “Contains poisonous/toxic copper. Safe for handling but not for use in elixirs.” (Healing Crystals)

Chrysotile – “Due to the asbestos content of this mineral, do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 207)
          “Chrysotile (asbestos) is the fibrous form of Serpentine. It should not be used because its dust can cause serious lung disease such as emphysema. However, its massive form (Serpentine) is completely safe to use.” (Lilly 150)

Chrysotite – Please see Chrysotile.

Cinnabar – “No elixir.” (The Crystal Healer 36)
          “Poisonous (mercury and quicksilver).” (Jentoft)
          “Poisonous and should not be used in crystal healing (Mercury Sulfide).” (Lilly 97)
          “Do not consume as a gemstone essence as it is poisonous to ingest.” (Stein xv)
          “Toxic or harmful stone. Contains mercury.” (Harton)
          “Do not use…for internal use. Contains mercury and quicksilver.” (Sullivan)
          “Cinnabar must on no account be taken internally as a tea or elixir!” (Peschek-Böhmer 123)
          “Contians mercury.” (Hibiscus)
          “Poisonous.” (Taylor 31)
          “Never use…toxic stone…contains mercury.” (O’Donoghue 56)
          “Contains mercury which can be poisonous/toxic. Wash hands after holding. Do not touch hands to eyes or mouth while holding.” (Healing Crystals)

Cinnamon Stone – Please see Hessonite.

Cobaltocalcite – “Toxic or harmful stone. Contains cobalt.” (Harton)

Colorado Jade – Please see Amazonite.

Colusite – “The slight arsenide content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 73)

Concretion – Some concretions may be too soft to prepare an elixir via the normal method.

Conicalcite – Please see Conichalcite.

Conichalcite – “Poisonous (copper).” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Toxic or harmful stone. Contains copper.” (Harton)
          “Do not use…for internal use. Contains copper.” (Sullivan)
          “Contains copper.” (Hibiscus)
          “Contains poisonous/toxic copper.” (Healing Crystals)

Copper – Poisonous. (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Toxic or harmful stone. Contains copper.” (Harton)
          “Do not use…for internal use. Poisonous.” (Sullivan)
          “’Pure’ copper found in nature sometimes contains small amounts of iron silver, bismuth, tin, lead, or antimony.” (Cayce 16)
          “It must not come into contact with water, which is why one should never drink copper water..” (Peschek-Böhmer 127)
          “Poisonous” (Hibiscus).
          “Poisonous.” (Healing Crystals)

Copper Vitriol – Please see Chalcanthite.

Coral – “Toxic or harmful stone. Organic, may contain bacteria as well as pollutants from toxic materials in the water it forms in.” (Harton)

Cordierite – Please see Iolite.

Corundum - Toxic or harmful stones. Contains aluminum.

Covellite – “An elixir should be made only from the polished mineral.” (Love is in the Earth - Updated 225)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
          "Contains copper and sulphur." (Hibiscus)
          “Contains poisonous/toxic copper.” (Healing Crystals)

Creaseyite – “Do not prepare an elixir of this mineral via the normal method.” (Supplement Z 83).

Crocidolite – Please see Tiger’s Eye.

Crocoite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 227)
          “Caution: No elixir.” (Complete Guide to Crystal Chakra Healing 68)
          “Contains poisonous/toxic levels of chromium. Do not touch hands to eyes or mouth while holding. Do not ingest.” (Healing Crystals)

Cumengéite – “The slight lead content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 77)

Cumengite – Please see Cumengéite.

Cuprite – “Poisonous (copper).” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Toxic or harmful stone. Contains copper.” (Harton)
          “Do not use…for internal use. Contains copper.” (Sullivan)
          “Contains copper.” (Hibiscus)
          “Contains poisonous/toxic sopper. Wash hands after holding. Do not touch hands to eyes or mouth while holding.” (Healing Crystals)

Cyanite – Please see Kyanite.

Cyanotrichite – “Preparation of an elixir via the normal method is not recommended.” (Love is in the Earth - Updated 231)

-D-

Dechenite – Please see Dicinite.

Demantoid - Please see Garnet.

Desert Glass, Libyan – Please see Tektite.

Desert Rose – Do not “immerse it in water as its mysterious desert nature is regarded as being weakened by immersion.” (Taylor 87)
          Please also see Barite and/or Selenite.

Devilline – “Due to the softness of this mineral, do not prepare an elixir of this mineral via the normal method.” (Supplement Z 95)

Diaboleite – “The slight lead content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 83)

Diamond - May be “artificially irradiated.” (Hibiscus)

Diaphanite – Please see Alexandrite.

Dicinite – “Do not prepare an elixir via the normal method.” (Love is in the Earth - Updated 242)

Diopside – “Toxic or harmful stone. Contains copper.” (Harton)

Dioptase – “Poisonous (copper).” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Toxic or harmful stone. Contains copper.” (Harton)
          “Do not use…for internal use. Contains copper.” (Sullivan)
          “Contains copper.” (Hibiscus)
          “Contains poisonous/toxic copper. Safe for handling but not for use in elixirs.” (Healing Crystals)

Disthene – Please see Kyanite.

Dragon’s Eye – Please see Tiger’s Eye.

Dravide - Please see Tourmaline.

Dravite - Please see Tourmaline.

Dumontite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 250)

Dumortierite – “Contains aluminum.” (Hibiscus) 
          “Contains aluminum.” (Healing Crystals)

-E-

Ear Shell – Please see Abalone.

Eglestonite – “Preparation of an elixir via the normal method is not recommended.” (Love is in the Earth - Updated 256)

Eilat Stone – “Toxic or harmful stone. Contains copper.” (Harton)

Elbaite - Please see Tourmaline.

Elöllingite – “The arsenide content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 155)

Emerald – “Toxic or harmful stone. Contains aluminum.” (Harton)
          “Contains aluminum.” (Healing Crystals)
          Please also see Beryl.

Emerald, Mother of – Please see Amazonite.

Enargite – “Do not prepare an elixir via the normal method.” (Love is in the Earth - Updated 259)

Endlichite – “Do not prepare an elixir via the normal method.” (Love is in the Earth - Updated 259)

Epidote - “Contains aluminum.” (Healing Crystals)

Erythrite – “Do not use as an elixir.” (Love is in the Earth - Updated 264)

Euchroite – “It is poisonous, so wash your hands thoroughly after handling.” (Lilly 141)  This mineral should only be used in an elixir prepared via the alternative method of preparation.

-F-

Fairy Cross – Please see Staurolite.

Fairy Stone - Please see Staurolite.

Fairy Tear - Please see Staurolite.

Falcon’s Eye - Please see Tiger’s Eye.

Falcondoite – Please see Garnierite.

Feldspar – “Contains aluminum.” (Healing Crystals)

Ferrimolybdite – “Due to the softness of this mineral, do not prepare an elixir of this mineral via the normal method.” (Supplement Z 105)

Fluorite – “Fluorite does occasionally have some toxic ingredients.” (Kennedy 237)

Fluor Spar -  Please see Fluorite.

Fool’s Gold – Please see Pyrite.

Fossil – Some fossils may be too soft to use in the normal method of preparation of an elixir.

Freibergite – “Do not prepare an elixir via the normal method.” (Love is in the Earth - Updated 285)

Fuchsite – “Due to the flakiness of this mineral, it is recommended that an elixir is not prepared by the normal method.” (Love is in the Earth - Updated 286)

-G-

Gaia Stone – Please see Chrysocolla.

Galena – “Internal consumption of an elixir of this mineral is not recommended.” (Love is in the Earth - Updated 289)
          “Poisonous (almost 90 percent lead.)” (Jentoft)
          “Never Use.” (Lilly 34)
          “Is toxic.” (Lilly 199)
          “Toxic or harmful stone.  Contains lead.” (Harton)
          “Do not use…for internal use.  Contains lead (almost 90%).” (Sullivan)
          “Contains lead.” (Hibiscus)
          “Sensitive to water or washing solutions.” (Gienger 13)
          “Poisonous if taken internally.” (Taylor 73)
          “Toxic, handle with care.” (Taylor 138)
          “Contains high amounts of lead which can be poisonous.” (Healing Crystals)

Galenite – Please see Galena.

Galmei – Please see Smithsonite.

Garnet – “Toxic or harmful stone. Contains aluminum.” (Harton)
          “Contains aluminum.” (Healing Crystals)

Garnierite – “Contains nickel.” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Toxic or harmful stone. Contains Nickel.” (Harton)
          “Contains nickel.” (Hibiscus)

Gem Silica – "Contains copper." (Hibiscus)
          Please see Chrysocolla.

Genthite – Please see Garnierite.

Geyserite – “Due to the solubility of this mineral, do not prepare an elixir via the normal method.” (Supplement Z 131)

Glass, Libyan Desert – Please see Tektite.

Glessum – Please see Amber.

Glesum – Please see Amber.

Goshenite - Toxic or harmful stone. Contains aluminum.
          Please also see Beryl.

Granite – “Some granites emit radon from the decay of Uranium.” (Hibiscus)

Graphite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 302)

Grossularite - Please see Garnet.

Guerinite – “Due to the softness of this mineral, do not prepare an elixir via the normal method.” (Love is in the Earth - Updated 304)

Gum Stone – Please see Amber.

Gumstone – Please see Amber.

Gypsum – Due to the soft nature of this mineral, it is recommended that only the alternative method of preparation be used to create an elixir.

-H-

Halite – “No elixir.” (The Crystal Healer 39) 
          “Due to the solubility of this Halite, do not prepare an elixir of this mineral via the normal method…One can use small amounts of this mineral as an elixir and as a mineral additive in cooking [small amounts being one to four drops].” (Love is in the Earth - Updated 310)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Do not use in a gemstone essence as it is very soft and may melt in the water.” (Stein xv)
          “…in the bath or under shower…it dissolves.” (The Crystal Bible 2 149)
          “Will dissolve in water (Halite is salt).” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Do not use…for internal use. Not suitable, as it will dissolve in water.” (Sullivan)
          “Caution: No elixir.” (Complete Guide to Crystal Chakra Healing 69)
          “The stone will dissolve [in water].” (New Crystals 130)
          “Should never be washed or held under water.” (Gienger 13)
          “Will start to dissolve…in water.” (Taylor 19)
          “Will react with water on a chemical level.” (Taylor 73)
          “Water soluble.  Avoid contact with water.” (Simpson 55)
          “Unfit for elixir use – will dissolve in water.” (Healing Crystals)

Halite, Translucent Massive – “Due to the solubility and electrification of this Halite configuration, do not prepare an elixir of this mineral via the normal method.” (Supplement A 321)
          Please also see Halite.

Hancockite – “The slight possible lead content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 123)

Hanksite – “Dissolves when wet. Keep dry.” (The Crystal Bible 2  151)

Hawk’s Eye - Please see Tiger’s Eye.

Heliodor - Toxic or harmful stone. Contains aluminum.
          Please also see Beryl.

Hematite – “Will rust.” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
          “Do not use…for internal use. Not suitable, as it will rust in water.” (Sullivan)
          “Never discharge in water.” (Peschek-Böhmer 163)
          “Will rust, but not toxic.” (Hibiscus)
          “Unfit for elixir use – will rust with prolonged exposure in liquid.” (Healing Crystals)

Hessonite – Please see Garnet.

Hiddenite – “Toxic or harmful stone. Contains aluminum.” (Harton)
          “Contains aluminum.” (Healing Crystals)
          May be artificially irradiated and could be radioactive.
          Please also see Spodumene.

Hyacinth – Please see Zircon.

Hyaline – Please see Opal.

Hyalite – Please see Opal.

-I-

Idocrase – Please see Vesuvianite.

Inca Gold – Please see Pyrite.

Inca Mirror – Please see Pyrite.

Inca Rose – Please see Rhodochrosite.

Indicolite - Please see Tourmaline.

Indigolite - Please see Tourmaline.

Iolite – “Toxic or harmful stone. Contains Aluminum.” (Harton)
          “Contains aluminum.” (Hibiscus)
          “Contains aluminum.” (Healing Crystals)

Iron Bloom – Please see Aragonite.

-J-

Jacinth – Please see Zircon.

Jade, Amazon – Please see Amazonite.

Jade, Colorado – Please see Amazonite.

Jade, New – Please see Serpentine.

Jadeite - “Contains aluminum and iron.” (Healing Crystals)

Jamesonite – “The lead content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 135)

Jet – “Neither water nor sun should be used in its cleaning and charging.” (Peschek-Böhmer 177)

-K-

Kansas Pop Rock – Please see Boji Stone ®

Kasolite – “This mineral is radioactive. Do not prepare an elixir of this mineral via the normal method. It is best to store this mineral in glass and to utilize the energies which permeate the glass.” (Love is in the Earth - Updated 357) Do not use this mineral in any elixir.

Kernite – “Due to the solubility of Kernite, do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 358)

Kidney Ore – Please see Hematite.

Kidney Stone – Please see Hematite.

Kuanos – Please see Azurite.

Kunzite – “Toxic or harmful stone. Contains aluminum.” (Harton)
          “Contains aluminum” May be “artificially irradiated.” (Hibiscus)
          Please also see Spodumene.

Kyanite – “Friable stones such as Kyanite should never be placed in water.” (Crystal User’s Handbook 77)
          “Toxic or harmful stone. Contains aluminum.” (Harton)
          “Contains aluminum.” (Healing Crystals)

-L-

Labradorite - “Toxic or harmful stone. Contains aluminum.” (Harton)
          “Contains aluminum.” (Healing Crystals)

Lapis Lazuli – “Poisonous (the Pyrite inclusions, that is).” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation.
          Lapis Lazuli is a crystal “not to cleanse in water or saltwater.” This stone is “either water-soluble or the physical properties are affected by the water.” (Lambert 149 & 150)
          “Toxic or harmful stone. May contain copper or sulphur” (Harton)
          “Contains Pyrite.” (Hibiscus)
          “Porous, do not soak, dry after cleansing. Avoid contact with water.” (Simpson 55)
          “Contains sulfur and possible Pyrite inclusions which are poisonous.” (Healing Crystals)

Lasur – Please see Azurite.

Lavulite – Please see Sugilite.

Lazulite - “Contains aluminum.” (Healing Crystals)

Lazurite - “Contains aluminum, sulfur. (Healing Crystals)

Lead – “Do not prepare an elixir via the normal method.” (Love is in the Earth - Updated 376).
          “Never Use” (Lilly 34). This mineral should only be used in an elixir prepared via the alternative method of preparation.

Lead Ore – Please see Galena.

Lepidolite – “Contains aluminum.” (Hibiscus)
          “Contains aluminum.” (Healing Crystals)

Libyan Desert Glass – Please see Tektite.

Liddicoatite - Please see Tourmaline.

Litharge – “Do not prepare an elixir via the normal method.” (Supplement Z165)

Lodestone – Please see Magnetite.

Löllingite – “The arsenide content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 155)

Luvulite – Please see Sugilite.

Lyncurium – Please see Amber.

Lynx Stone – Please see Amber.

-M-

Magnetite – “Unfit (iron, will rust).” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation.
           “Toxic or harmful stone.  Contains iron in large quantities.” (Harton)
           “Do not use…for internal use.  Not suitable, as it will rust in water.” (Sullivan)
           “Because the stone contains iron it must not come into contact with water.” (Peschek-Böhmer 193)
           “Will rust, but not toxic” (Hibiscus)
           “Iron will rust, DO NOT use in elixirs or charging water” (Healing Crystals)

Malachite – “It is recommended that only the polished form of malachite be used for the preparation of an elixir via the normal method.” (Love is in the Earth - Updated 396) This mineral should only be used in an elixir prepared via the alternative method of preparation.
           “It is toxic and should be used only in its polished form. Avoid breathing its dust. If used as a gem elixir, apply externally only or make by the indirect method of placing the stone in a glass container and standing this within spring water so that the stone does not touch the water.” (The Crystal Bible 182-183)
           “Malachite is very soft and absorbent, so should be kept separate from harder stones and corrosive materials such as salt and oils.” (Lilly 153) This mineral should only be used in an elixir prepared via the alternative method of preparation.
           “Do not consume as a gemstone essence as it is poisonous to ingest.” (Stein xv)
           “If the gem essence is made from a toxic crystal such as Malachite…put some on your hands and pass them around your body about a foot away.” (Crystal User’s Handbook 50)
“Never use a toxic stone such as Malachite unpolished. Polished stone elixirs from toxic crystals should be used only for external application.” (Crystal User’s Handbook 51)
           “Use tumbled stone only.” (Crystal User’s Handbook 99)
           “Use polished Malachite for elixir preparation.” (Crystal User’s Handbook 122)
           “Best to use polished malachite as dust from rough crystal can adversely affect some people.” (Lambert 51)
           “Only use in polished form as the dust can be toxic.” (Lambert 73)
           “Use polished stone.” (Lambert 95)
          Malachite is a crystal “not to cleanse in water or saltwater.” This stone is “either water-soluble or the physical properties are affected by the water.” (Lambert 149 & 150)
           “Toxic or harmful stone. Contains copper.” (Harton)
           “Do not use…for internal use. Poisonous.” (Sullivan)
           “…Because the dust of Malachite can be poisonous, great care should always be taken…with this stone.” (Silver  62)
           “Contains copper.” (Hibiscus)
           “Cool water only. Avoid contact with water.” (Simpson 55)
           “Contains poisonous/toxic copper.” (Healing Crystals)

Malachite, Blue – Please see Azurite.

Maqui Marble © – Please see mocha Ball.

Marcasite – “Poisonous (sulfur, Marcasite has the same chemical makeup as Pyrite).” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
            “Toxic or harmful stone. Contains sulphur. (Harton)
            “Do not use…for internal use. Contains sulfur”. (Sullivan)
            “Contains sulphur.” (Hibiscus)
            “With time and exposure to oxygen, may form a white powdery substance/residue which is poisonous/toxic sulfuric acid. If this occurs you should not wear next to the skin or touch. Not recommended for elixirs.” (Healing Crystals)

Markasite - Please see Marcasite.

Melanite - Please see Andradite.

Mendozavilite – “Do not prepare an elixir via the normal method.” (Supplement Z 169)

Merlinite, Black – Please see Psilomelane.

Meteorite – “No elixir with chondrites and achondrites.” (The Crystal Healer 101) Only Tektites are safe to use in the normal method of preparation of an elixir.
            “Toxic or harmful stone. May contain many toxic substances.” (Harton)

Mica - Due to the flakiness of this mineral, it is recommended that an elixir is not prepared by the normal method.

Mica, Green – Please see Fuchsite. Please also see Mica.

Mica, Lepidolite – Please see Lepidolite. Please also see Mica.

Microcline, Blue-Green – Please see Amazonite.

Minium – “The lead content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 171)

Mixite – “Do not prepare an elixir of this mineral via the normal method. (Love is in the Earth - Updated 410)

Mochi Ball © – These stones are too soft to use in the normal method of preparation of an elixir.
           Please also see Concretion

Mochi Marble © - please see Mochi Ball

Mohawkite – “Poisonous (copper, arsenic, etc. Keep away from children!).” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of preparation.
            “Toxic or harmful stone. Contains copper and arsenic.” (Harton)
            “Do not use…for internal use. Contains copper and arsenic.” (Sullivan)
            “Contains copper and arsenic.” (Hibiscus)

Moldavite – “Toxic or harmful stone. Contains aluminum.” (Harton)
           "Contains aluminum oxide." (Hibiscus)

Molybdenum – “Toxic or harmful stone. Contains molybdenum.” (Harton)

Moonstone – “Toxic or harmful stone. May contain aluminum or other harmful substances.” (Harton)
            “Contains aluminum.” (Hibiscus)
            “Contains aluminum.” (Healing Crystals)

Moonstone, Rainbow – Please see Labradorite.

Moqui Ball – Please see Mochi Ball.

Moqui Marble – Please see Mochi Ball.

Morganite - Toxic or harmful stone. Contains aluminum.
           “Contains aluminum.” (Healing Crystals)
           "Contains aluminum." (Hibiscus)
           Please also see Beryl.

Mother of Emerald – Please see Amazonite.

Mother of Pearl - “Harmful or toxic stone. Organic, may contain bacteria as well as pollutants from toxic materials from the water it forms in.” (Harton)

Mother of Pearl, Rainbow – Please see Abalone.

Muscovite - Due to the flakiness of this mineral, it is recommended that an elixir is not prepared by the normal method.

           Please also see Mica.           

-N-

Nadorite – Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 427)

Natrojarosite – “Do not prepare an elixir via the normal method.” (Supplement Z 183)

New Jade – Please see Serpentine.

Newberyite – “The solubility of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 179)

Niccolite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 433)

-O-

Olivenite – “The arsenide content of this precludes its use in the normal method of preparation of an elixir.” (Supplement A 323)

Opal – “Toxic or harmful stone. Toxic dust for inhalation…so if you must use opal for an elixir, etc., be sure to carefully clean off any opal dust.” (Harton)
           Opal, Fire – “Can absorb water and crack” (Taylor 34).

Orpiment – Due to the softness of orpiment, the preparation of an elixir via the normal method is not recommended” (Love is in the Earth - Updated 464).  Do not use this mineral in any elixir.
            “An arsenic.” (Jentoft)  Do not use this mineral in any elixir.
            “Never Use.” (Lilly 34)  Do not use this mineral in any elixir.
            “Orpiment is poisonous to touch and gives off arsenic vapors, so should never be used.” (Lilly 122)
            “It is vitally important to make sure that the stone is not ingested. Orpiment contains the poison arsenic and must never be taken internally!” (Peschek-Böhmer 218)
            “All Orpiment in the various shades of yellow contain poisonous arsenic and is therefore very dangerous. Used externally, it is completely safe.” (Peschek-Böhmer 219)
           There are contradictory statements given by different authors as to whether or not Orpiment is safe to use externally. To be safe, always wash hands thoroughly after handling and NEVER use internally.
            “Never use…toxic stone…[contains] arsenic.” (O’Donoghue 56)
            “HIGHLY TOXIC levels of Arsenic.  Wash hands after use, keep away from children! Do not put hands near eyes or mouth before washing hands.” (Healing Crystals)
           Orpiment contains Arsenic, so please wash hands thoroughly after handling.

Orthoclase - “Contains aluminum.” (Healing Crystals)

Osarizawaite – “Do not prepare an elixir via the normal method.” (Supplement Z 209)

Ox’s Eye - Please see Tiger’s Eye.

-P-

Pargasite - “Contains aluminum so it is not recommended for elixirs or immersing in water to charge it.” (Healing Crystals)

Paua Shell – Please see Abalone.

Peacock Ore – Please see Chalcopyrite.

Peacock Rock - Please see Chalcopyrite.

Peacock Stone - Please see Chalcopyrite.

Pearl – “Toxic or harmful stone. Organic, may contain bacteria as well as pollutants from toxic materials in the water it forms in.” (Harton)
           May be “artificially irradiated.” (Hibiscus)

Peridot of Ceylon - Please see Tourmaline.

Pietersite – “Do not use…for internal use. Contains aluminum.” (Sullivan).
            “Fibrous form contains asbestos.” (Hibiscus)
            “Similar to Tiger’s Eye. Fibrous form contains asbestos. Not recommended to use raw forms for elixirs. (Healing Crystals)

Pilsenite – “Do not prepare an elixir of this mineral via the normal method.” (Supplement Z 223)

Pit Amber – Please see Amber.

Plattnerite – “Do not prepare an elixir of this mineral via the normal method.” (Supplement Z 225)

Pollucite – “The slight content of Cesium in this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 195)

Polysphaerite – “Do not prepare an elixir of this mineral via the normal method.” (Supplement Z 227)

Potch – Please see Opal.

Prehnite – “Contains aluminum.” (Hibiscus)
            “Contains aluminum.” (Healing Crystals)

Proustite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 494)

Psilomelane – “Poisonous (barium).” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation.
            “Toxic or harmful stone. Contains barium.” (Harton)
            “Do not use for internal use. Contains barium.” (Sullivan)
            “Contains barium.” (Hibiscus)
            “Contains poisonous/toxic barium.” (Healing Crystals)

Pumice – Due to the soft nature of this stone, an elixir should only be prepared using the indirect method.

Purpurite – “Sensitive to water or washing solutions.” (Gienger 13)

Pyrite – “Poisonous (sulfur).” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation.
            “Toxic or harmful stone. Contains sulphur.” (Harton)
            “Do not use…for internal use.  Contains sulfur.” (Sullivan)
            “Never let it come into contact with water!” (Peschek-Böhmer 231)
            “Contains sulphur.” (Hibiscus)
            “Sensitive to water or washing solutions.” (Gienger 13)
            “May contain intermixed Marcasite. The Marcasite with time and exposure to oxygen, may form a white powdery substance/residue which is poisonous/toxic sulfuric acid. If this occurs you should not wear next to the skin or touch. Not recommended for elixirs.” (Healing Crystals)

Pyromorphite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 499)

Pyrope - Please see Garnet.

-Q-

Quantum Quatro Silica - “Contains poisonous/toxic copper.” (Healing Crystals)

Quantum Stone - Please see Quantum Quatro Silica.

Quartz – “Toxic or harmful stone.  Toxic dust for inhalation…so if you must use Quartz for an elixir etc., be sure to clean off any quartz dust.” (Harton) I have never heard this mentioned anywhere else so I do not know if there is any truth to it. However, it is always a good idea to rinse your stones before using them to prepare an elixir.

Quartz, Smokey – Please see Quartz, Smoky.

Quartz, Smoky – May be “artificially irradiated.” (Hibiscus)

-R-

Realgar – “Poisonous (sulfur and arsenic). Keep away from children!)” (Jentoft) This mineral should not be used in any elixir. 
             “Never use.” (Lilly 34) 
             “Poisonous and should not be used in crystal healing (Arsenic Sulfide).” (Lilly 97) 
             “Toxic or harmful stone. Contains sulfur and arsenic.” (Harton) 
             “Do not use…for internal use. Contains sulfur and arsenic.” (Sullivan) 
             “Contains sulphur and arsenic.” (Hibiscus) 
             “HIGHLY TOXIC levels of arsenic. Wash hands after use, keep away from children!  Do not put hands near eyes or mouth before washing hands.” (Healing Crystals)

Record Stone – “Due to the possible solubility of the attendant minerals, do not prepare an elixir via the normal method.” (Supplement Z 287)

Rhodicite – Please see Rhodizite

Rhodizite – “The slight possible content of Cesium in this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 245)

Rhodochrosite – “Toxic or harmful stone. Contains lead.” (Harton)

Rhodolite – Please see Garnet.

Royal Azel – Please see Sugilite.

Rubellite – May be “artificially irradiated.” (Hibiscus) 
            Please see also see Tourmaline.

Ruby – “Toxic or harmful stone.  Contains aluminum.” (Harton) 
             “Contains aluminum.” (Hibiscus) 
             “Contains aluminum.” (Healing Crystals) 
            Please also see Corundum.

Ruby Silver – Please see Proustite.

-S-

Sal Ammoniac – “Do not prepare an elixir via the normal method.” (Supplement Z 271)

Saléeite – “The content of Uranium in this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 253)

Sandstone - Due to the soft nature of this stone, an elixir should   only be prepared using the indirect method.

Sapphire – “Toxic or harmful stones. Contains aluminum.” (Harton) 
             “Contains aluminum.” (Hibiscus) 
             “Contains aluminum.” (Healing Crystals) 
            Please also see Corundum.

Sapphire, Water – Please see Iolite.

Scapolite - “Contains aluminum.” (Healing Crystals)

Schorl - Please see Tourmaline.

Schröeckingerite – “Do not prepare an elixir via the normal method.” (Supplement Z 275)

Scoopstone – Please see Amber.

Seamanite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 594)

Selenite – “Selenite dissolves when wet.” (The Crystal Bible 260). This stone should only be made into an elixir via the alternative method. 
             “It is extremely sensitive to water and humidity – it will bend even in the hand and may slide apart into many thin sheaves if it is put into water.” (Lilly 228) This mineral should only be used in an elixir prepared via the alternative method of preparation. 
            Selenite is a crystal “not to cleanse in water or saltwater.”  This stone is “either water-soluble or the physical properties are affected by the water.” (Lambert 149 & 150) 
             “Although not toxic, friable; tiny shards may break off in water.” (Hibiscus) 
             “Don’t use…water-soluble.” (O’Donoghue 56) 
             “Water soluble.  Avoid contact with water.” (Simpson 55) 
             “Unfit for internal ingestion - tiny shards may break off in water.” (Healing Crystals) 
            Please also see Gypsum.

Serpentine – “Fibrous form contains asbestos.” (Hibiscus) 
             “Fibrous forms are asbestos. Wash hands after use. Not recommended in elixir preparation.” (Healing Crystals)

Shaman Stone © - Please see Mochi Ball.

Siberite - Please see Tourmaline.

Silver, Ruby – Please see Proustite.

Slaty Shale – “Due to the possible solubility of the attendant minerals, do not prepare an elixir via the normal method.” (Supplement Z 287)

Smithsonite – “Poisonous (zinc, may also contain copper).” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation. 
             “Toxic or harmful stone. Contains Zinc. May contain copper.” (Harton) 
             “Do not use…for internal use. Contains zinc and copper.” (Sullivan) 
             “May contain copper.” (Hibiscus) 
             “Contains zinc and may contain copper (Green Smithsonite). Safe for handling but may be poisonous/toxic when used in elixirs.” (Healing Crystals)

Smoky Quartz – Please see Quartz, Smoky.

Sodalite – “Toxic or harmful stone. Contains aluminum.” (Harton) 
             “Contains aluminum.” (Hibiscus) 
             “Contains aluminum.” (Healing Crystals)

Spectrolite – Please see Labradorite.

Spessartine – Please see Garnet.

Spessartite – Please see Garnet.

Spinel – “Toxic or harmful stone. May contain aluminum and zinc.” (Harton). 
             “Contains aluminum.” (Hibiscus) 
             “Contains aluminum.” (Healing Crystals)

Spodumene - Toxic or harmful stone. Contains aluminum. 
             “Contains aluminum.” (Hibiscus) 
             “Contains aluminum.” (Healing Crystals)

Staurolite – “Contains aluminum.” (Hibiscus) 
             “Contains aluminum and iron.” (Healing Crystals)

Stibinite – Please see Stibnite.

Stibnite – “Has lead and antimony.” (Jentoft)  This mineral should only be used in an elixir prepared via the alternative method of reparation. 
             “Never Use.” (Lilly 34) 
             “It is potentially poisonous (Antimony Sulfide).” (Lilly 65)  This mineral should only be used in an elixir prepared via the alternative method of preparation. 
             “Toxic or harmful stone. Contains lead and antimony.” (Harton) 
             “Do not use…for internal use. Contains lead.” (Sullivan) 
             “Wash your hands thoroughly after handling Stibnite as it is toxic.” (The Crystal Bible 2 208) 
             “As Stibnite is toxic, wash hands thoroughly after use and make the gem essence by the indirect method.” (The Crystal Bible 2 330) 
             “Contains lead and antimony.” (Hibiscus) 
             “Contains lead and antimony. Not recommended for elixirs.” (Healing Crystals)

Stilbite – “Contains aluminum.” (Hibiscus) 
             “Contains aluminum.” (Healing Crystals)

Succin – Please see Amber.

Succinite – Please see Amber.

Sugalite – Please see Sugilite.

Sugelite – Please see Sugilite.

Sugilite – “Contains aluminum.” (Hibiscus) 
             “Contains aluminum.” (Healing Crystals)

Sulfur – “Do not soak this stone in water, as the mineral will dissolve.” (Stein 211) 
            Toxic or harmful stone. Contains sulfur.” (Harton) 
             “Caution: No elixir.” (Complete Guide to Crystal Chakra Healing 79) 
             “Poisonous.” (Hibiscus) 
             “Don’t use…water-soluble.” (O’Donoghue 56) 
             “Contains poisonous sulfur.” (Healing Crystals)

Sunstone – “Contains aluminum.” (Hibiscus) 
              “Contains aluminum.” (Healing Crystals)

Svabite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 629)

Sylvanite – “Do not prepare an elixir via the normal method.” (Supplement Z 297).

Sylvine – Please see Sylvite.

Sylvinite – “Due to the solubility of this mineral, do not prepare an elixir via the normal method.” (Supplement Z 299).

Sylvite – “The solubility of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 279)

-T-

Tanzanite-“ Contains aluminum.” (Hibiscus) 
               “Contains aluminum.” (Healing Crystals). 
              Please also see Zoisite.

Tarnovizit – Please see Tarnowitzite.

Tarnowitzite – “Do not prepare an elixir via the normal method.” (Supplement Z 303)

Tektite – Please see Meteorite.

Television Rock – Please see Ulexite.

Television Stone – Please see Ulexite.

Tellurium – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 638)

Tennanite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 639)

Tetrahedrite – “Do not prepare an elixir via the normal method.” (Supplement Z 305)

Thenardite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 643)

Thulite – Please see Zoisite.

Tiffany Stone – “Beryllium is toxic; use the stone in polished form and prepare the gem essence by the indirect method.” (The Crystal Bible 2 338) 
              Please also see Fluorite and Opal.

Tiger Iron – Please see Tiger’s Eye and Hematite.

Tiger’s Eye – “Toxic or harmful stone.” (Harton) 
               “Chocolate colored…may have been irradiated.” (Jentoft) 
               “Fibrous form contains asbestos.” (Hibiscus) 
               “Fibrous form contains asbestos. Not recommended to use raw form for elixirs.” (Healing Crystals)

Tirolit – “The arsenide content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 285)

Topaz – “Toxic or harmful stone.” (Harton) 
               “Contains aluminum.” (Hibiscus) 
               ‘May be “artificially irradiated.” (Hibiscus) 
               “Contains aluminum.” (Healing Crystals)

Topaz, Mystic – “Make the essence by the indirect method.” (The Crystal Bible 2 193) 
              Please also see Topaz.

Torbenite - Please see Torbernite.

Torbernite – “Radioactive.” (Hibiscus) 
               “Radioactive.” (Healing Crystals)

Tourmaline – Toxic or harmful stone. Contains aluminum. 
               “Contains aluminum.” (Hibiscus) 
               “Contains aluminum.” (Healing Crystals)

Tourmaline, Watermelon – “Toxic or harmful stone. Contains aluminum.” (Harton) 
              Please also see Tourmaline.

Tremolite – “May contain asbestos.” (Hibiscus) 
               “Fibrous forms are asbestos. Not recommended for elixirs. Wash hands after use.” (Healing Crystals)

Tsavorite - Please see Garnet.

Tsilasite - Please see Tourmaline.

Turquoise – “Turquoise is a crystal “not to cleanse in water or saltwater.”  This stone is “either water-soluble or the physical properties are affected by the water.” (Lambert 149 & 150) 
               “Toxic or harmful stone. Contains copper.” (Harton) 
               “Contains copper and aluminum.” (Hibiscus) 
               “Do not soak. Avoid contact with water.” (Simpson 55)  “Porous and prone to cracking and fading - may be waxed to prevent this.” (Simpson 61) 
               “Contains poisonous/toxic copper and aluminum. Safe for handling but not for use in elixirs.” (Healing Crystals)

T.V. Rock – Please see Ulexite.

T.V. Stone – Please see Ulexite.

Tyrolite – “The arsenide content of this mineral precludes its use in the normal method of preparation of an elixir.” (Supplement A 285)

-U-

Ulexite – “The rock will lose its luster when in contact with water.” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation. 
                “Ulexite is a soft mineral, sensitive to water and humidity.” (Lilly 240)  This mineral should only be used in an elixir prepared via the alternative method of preparation. 
                “Do not use…for internal use.  Stone loses its luster in water. Contains asbestos.” (Sullivan) 
                “Should never be washed or held under water.” (Gienger 13) 
                “Contains toxic boron.” (Healing Crystals)

Ullmannite – Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 674)

Uraninite – “Preparation of an elixir via the normal method is not recommended.” (Supplement A 330)

Uranium – “Toxic or harmful stone.  Radioactive mineral.” (Harton) 
                “Avoid because of radioactivity.” (Jentoft)

Uranophane – “Radioactive.” (The Crystal Bible 2 344) 
                “A radioactive crystal.” (New Crystals 129)

Uvarovite - Please see Garnet.

Uvite – Please see Tourmaline.

-V-

Vanadinite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 681) This mineral should only be used in an elixir prepared via the alternative method of preparation. 
                 “Poisonous (lead).” (Jentoft) 
                 “Toxic or harmful stone. Contains lead.” (Harton) 
                 “Do not use for internal use. Contains lead.” (Sullivan) 
                 “Caution: No Elixir.” (Complete Guide to Crystal Chakra Healing 67) 
                 “Contains vanadium..” (Hibiscus) 
                 “Contains poisonous vanadium” (Healing Crystals)

Variscite – “Toxic or harmful stone. Contains aluminum.” (Harton) 
                 “Contains aluminum.” (Hibiscus) 
                 “Contains aluminum.” (Healing Crystals)

Venus Stone – Please see Chrysocolla.

Verdalite – Please see Tourmaline.

Verdelite - Please see Tourmaline.

Verdite - Please see Tourmaline.

Vesuvianite – “Contains aluminum.” (Hibiscus) 
                 “Contains aluminum.” (Healing Crystals)

Viking’s Compass – Please see Iolite.

Violarite – “Do not prepare an elixir via the normal method.” (Supplement Z 321)

Vivianite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 684)

Vltava – Please see Moldavite.

Volcanic Ash – Please see Ash, Volcanic.

-W-

Wad – “This mineral exhibits a softness, do not prepare an elixir of same via the normal method.” (Love is in the Earth - Updated 687)

Water Sapphire – Please see Iolite

Wavellite – “Contains aluminum.” (Hibiscus) 
                  “Contains aluminum.” (Healing Crystals)

Weeksite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 691)

Williamsite – “Do not prepare an elixir of this mineral via the normal method.” (Love is in the Earth - Updated 694)

Wulfenite – “Poisonous (lead and molybdenum).” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation. 
                  “Toxic or harmful stone. Contains lead and molybdenum.” (Harton) 
                  “Do not use…for internal use. Contains lead and molybdenum.” (Sullivan) 
                  “Contains lead and molybdenum.” (Hibiscus) 
                  “Contains poisonous lead and molybdenum. Safe for handling but not for use in elixirs.” (Healing Crystals)

-Z-

Zincite - “Poisonous (zinc, may also contain copper).” (Jentoft) This mineral should only be used in an elixir prepared via the alternative method of preparation. 
                  Toxic or harmful stone. Contains Zinc. May contain copper.” (Harton)

Zinc Spar – Please see Smithsonite.

Zircon – “Contains zirconium, radioactive.” (Hibiscus) 
                   “Contains traces of Uranium and Thorium [which emit] alpha particles.” (Taylor 122) 
                   “Contains ziroconium, radioactive.” (Healing Crystals)

Zoisite – “Contains aluminum.” (Hibiscus) 
                   “Contains aluminum.” (Healing Crystals) 
                   “Flaky or powdery stones, or those that have cavities which could harbour micro-organisms, are not suitable for making             essences.” (Taylor 70)