Toxic Minerals, from K to N

Find out if you have toxic minerals, from K to N. If you aren’t sure how to handle some stones, this is a good reference for you to figure out which harmful crystals to avoid.

Have you been working with toxic minerals? Check the list below to help you learn which gems are potentially toxic. This is by no means a comprehensive list, but has many of the most common crystals, as well as some of the rare minerals.

Always check to be sure that the stones used in your essence or elixir are non-toxic. If you are unsure, for most stones, essences and elixirs can be prepared using the Indirect Method.

Using the Indirect Gem Elixir method, toxic minerals (or stones you’re not sure about) are placed inside of a small, sealed glass container that has no water. The sealed jar is then placed in the water. You can also omit the container completely, and put crystals around the outside of the water container, instead. Using the Indirect Method, the stones never make contact with the water, but their energetic vibration is allowed to be transmitted through the conductive glass container into the water. This allows more harmful crystals and toxic minerals to be used for a safe gem essence or crystal elixir. However, there is a huge exception to this rule…

Radioactive stones and crystals should NEVER be used in the preparation of elixirs or essences. Indirect method does not prevent the danger of radioactive minerals. DO NOT use radioactive stones for this, ever! It’s safest to consider that all radioactive stones are toxic minerals when it comes to elixirs.

If you’re experimenting with elixirs, MAKE SURE you check this resource, and do your full research. Putting toxic minerals in your water can lead to sickness or death if not done properly.



Toxic Minerals: 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)

Toxic Minerals: 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.

Toxic Minerals: 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 Mochi 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.

Toxic Minerals: 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)

Bibliography

Bourgault, Luc. The American Indian Secrets of Crystal Healing. Creative Print & Design. Ebbw Vale, Wales: 1997.

Cayce, Edgar.  Gems and Stones:  Based on the Edgar Cayce Readings – Stones for Healing, Gems for Attunement, Twenty-Two Minerals, Plus Scientific and Historic Correlations:  Revised Edition.  Association for Research and Enlightenment (A.R.E.) Press.  Virginia Beach, Virginia: 2007.

Gienger, Michael. Purifying Crystals: How to Clear, Charge, and Purify Your Healing Crystals. Earthdancer Publishing. Forres, Scotland: 2008.

Hall, Judy. Crystal User’s Handbook: An Illustrated Guide. Sterling Publishing. New York, New York: 2002.

Hall, Judy. The Crystal Bible. Walking Stick Press. Cincinnati, Ohio: 2003.

Hall, Judy. The Crystal Bible 2. Walking Stick Press. Cincinnati, Ohio: 2009.
Hall, Judy. New Crystals and Healing Stones:A Complete Guide to 150 Recently Available Crystals and Stones. Godsfield Press. London, England: 2006.

Harton, Robyn A. Toxic or Harmful Stones. http://crystalsandjewelry.com/metaphysical_healing/toxicstones.html  Date of Access: December 18, 2008.

Healing Crystals (Kristi Huggins/Mira Bai & Steve Garza). Crystal Cautions. http://www.healingcrystals.com/Crystal_Cautions_Articles_1009.html  Date of Access: September 24, 2012.

Hibiscus Moon. Toxic Crystals & Stones List. http://www.hibiscusmooncrystals.com/toxic-crystals–stones-list.html  Date of Access: September 26, 2012.

Jentoft, Peggy & Liz Gunther. Toxic Stones. http://pjentoft.com/f-55-TOXIC-STONES.html  Date of Access: June 13, 2008.

Kennedy, Teresa. Gems of Wisdom, Gems of Power: A Practical Guide to How Gemstones, Minerals, & Crystals Can Enhance Your Life. Marlowe & Company. New York, New York: 2007.

Lambert, Mary. Crystal Energy: 150 Ways to bring success, love, health, and harmony into your life. Sterling Publishing Co. New York: New York: 2005.

Lilly, Simon and Sue Lilly. The Essential Crystal Handbook. Duncan Baird Publishers. London, England: 2006.

Melody. Love is in the Earth: A Kaleidoscope of Crystals: Updated. Earth Love Publishing House. Wheat Ridge, Colorado: 1995.

Melody. Love is in the Earth: Kaleidoscopic Pictorial: Supplement A. Earth Love Publishing House. Wheat Ridge, Colorado: 1996.

Melody. Love is in the Earth: Kaleidoscopic Pictorial: Supplement Z. Earth Love Publishing House. Wheat Ridge Colorado: 1998.

O’Donoghue, Shirley. Crystal Therapy: Exercises and Inspirations for Well-Being. Duncan Baird Publishers. London, England: 2007.

Permutt, Philip. The Complete Guide to Crystal Chakra Healing. Cico Books. New York, New York: 2009.

Permutt, Philip. The Crystal Healer. Cico Books. New York, New York: 2007.

Peschek-Böhmer, Flora and Gisela Schreiber. Healing Crystals and Gemstones from Amethyst to Zircon: A Comprehensive Listing of the Therapeutic Uses and Healing Effects of the Most Important Crystals and Gemstones. Konecky & Konecky. Old Saybrook, Connecticut: 2002.

Silver, Dawn & Pat Gullett.  Jewels of the Lotus: Tibetan Gemstone Oracle.  Bluestar Communications.  Orinda, California: 2002.

Simpson, Liz. The Book of Crystal Healing.  Thunder Bay Press.  San Diego, California: 1997.

Stein, Diane. Gem Stones A to Z: A Handy Reference to Healing Crystals. Crossing Press. Berkeley, California: 2008.

Sullivan, Susan. What NOT to Use in a Gemstone Essence or Elixir You Would Consume. http://www.howlatm.com/elixir_warnings.html Date of Access: December 18, 2008.

Taylor, Ken and Joules Taylor. Taylor, Home, & Personal Power.  Collins & Brown Limited. London, England: 1999.

List compiled by Ashley Leavy, at Crystal Healer.

Disclaimer: Crystallography Gems are neither doctors, nor in the medical profession. We cannot give out medical advice. Crystals and energy healing should be used as a compliment to other therapies and not as a replacement for regular medical care. Always seek medical treatment if you are having health issues. We accept no liability for your actions.