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Norbergite

Norbergite

Sweet Freedom Designs: Metaphysics and Gemstones - Focus and ...

Sweet Freedom Designs: Metaphysics and Gemstones - Focus and ...

Norbergite on Calcite / Burma (Myanmar)

Norbergite on Calcite / Burma (Myanmar)

Adamite and Calcite from Mexico

Adamite and Calcite from Mexico

Leifite (ivory colored), Serandite (salmon colored crystals) / Mont Saint-Hilaire, Québec, Canada

Leifite (ivory colored), Serandite (salmon colored crystals) / Mont Saint-Hilaire, Québec, Canada

Quartz from Hot Springs, Garland Co., Arkansas, USA © Rob Lavinsky:  Quartz is the most common mineral found on the surface of the Earth. A significant component of many igneous, metamorphic and sedimentary rocks, this natural form of silicon dioxide is found in an impressive range of varieties and colours. There are many names for different varieties: Cryptocrystalline varieties of quartz are listed separately under chalcedony, and include agate.

Quartz from Hot Springs, Garland Co., Arkansas, USA © Rob Lavinsky: Quartz is the most common mineral found on the surface of the Earth. A significant component of many igneous, metamorphic and sedimentary rocks, this natural form of silicon dioxide is found in an impressive range of varieties and colours. There are many names for different varieties: Cryptocrystalline varieties of quartz are listed separately under chalcedony, and include agate.

Spinel on Marble matrix / Burma; gorgeous

Spinel on Marble matrix / Burma; gorgeous

Precious Opal in basalt / Vernon, British Columbia

Precious Opal in basalt / Vernon, British Columbia

Calcite with Sphalerite and Fluorite /   The football-shaped mineral is Calcite - here two large, twinned crystals. The black crystals are Sphalerite, a source of zinc; the purple crystals are Fluorite. Rarely do large crystals, such as these, survive the mining process. / Elmwood Mine, Tennessee

Calcite with Sphalerite and Fluorite / The football-shaped mineral is Calcite - here two large, twinned crystals. The black crystals are Sphalerite, a source of zinc; the purple crystals are Fluorite. Rarely do large crystals, such as these, survive the mining process. / Elmwood Mine, Tennessee

Quartz var. Amethyst / Südtirol, Italy

Quartz var. Amethyst / Südtirol, Italy

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