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 crystals,
gems and minerals
gems & minerals I - M
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Imperial Jasper
Location: Mexico
Variety of: Chalcedony
Chemical Composition: SiO2
Hardness: 6.5 - 7 |
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(Mammoth) Ivory
Organic Gemstone
Chemical composition: calcium phosphate
Hardness: 2 - 3
Ivory originally only referred to the material of the
elephant's tusk. Today it is also the teeth of the hippopotamus,
narwhal, walrus, wild boar, and fossilized mammoth. Since 1989,
there has been a worldwide ban on ANY trade in elephant's ivory.
Learn more about Ivory! |
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Jet
Organic Gemstone
Chemical composition: lignite
Hardness: 2.5 - 4
Jet is a bituminous coal that can be
polished |
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Kunzite
Location: Afghanistan
Vitreous pink to lilac color.
Variety of: Spodumene
Chemical Composition: LiAlSi2 O6, Lithium
Aluminum Silicate
Hardness: 6.5 - 7 |
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Labradorite
Location: Madagascar
It displays a particular type of iridescence on a dark to light
smoke gray background.
Chemical Composition: NaAlSi3O8 to CaAl2Si2O8 (Sodium Calcium
Aluminosilicate)
Hardness: 6 - 6.5
Learn more about Labradorite! |
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Lapis
Lazuli
Location: Afghanistan
Chemical Composition: (Na, Ca)8Al6Si6O24(S,
SO4) , Sodium Calcium Aluminum Silicate
Sulfur Sulfate
Hardness: 5 - 5.5 |
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Botryoidal Lepidolite
Location: Taquaral City Minas Gerais, Brazil
Chemical Composition: KLi2Al(Al, Si)3O10(F, OH)2, Potassium lithium
aluminum silicate hydroxide fluoride
Hardness: 2.5
Learn more about Lepidolite! |
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Lingam
Also known as the "Tantric Linga"
Location: India
"Crypto Crystalline Quartz" |
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Malachite
Location: Zaire, Africa
Chemical Composition: Cu2(CO3)(OH)2, Copper Carbonate Hydroxide
Hardness: 3.5-4
Learn more about malachite! |
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Mesolite on Apophyllite
Location: Poona India
Chemical Composition of Mesolite:
Na2Ca2Al6Si9O30 - 8H2O, Hydrated sodium
calcium aluminum silicate
Hardness of Mesolite: 5 - 5.5
Chemical Composition of Apophyllite:
(K,Na)Ca4Si8O20(F,OH) - 8H2O, Hydrated
Potassium Calcium Sodium Silicate Fluoride
Hydroxide
Hardness of Apophyllite: 4.5 - 5 |
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Mica - Phlogopite
Phlogopite is a rare form of mica.
Location: Madagascar
Chemical Composition: K Mg3 AlSi3 O10 (OH)2, Potassium magnesium
aluminum silicate hydroxide
Hardness: 2.5 - 3 |
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Rose Mica
Location: New Mexico
Chemical Composition: K Mg3 AlSi3 O10 (OH)2,
Potassium magnesium aluminum silicate
hydroxide
Hardness: 2.5 - 3 |
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Moldavite
Location: Czech Republic
Chemical Composition: mostly silica glass with impurities of
magnesium, iron and other elements
Hardness: 5 - 6 |
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Morganite
Location: Kunar, Afghanistan
Variety of: Beryl
Chemical Composition: Be3 Al2 Si6 O18
Hardness: 7.5 - 8 |
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Mother of
Pearl
Organic Gemstone
Location: a variety of fresh and salt water
shells
Chemical Composition: Calcium carbonate
CaCo3 with organics and water
Hardness: 3 - 4.5
Learn more about
Mother of Pearl!
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