Durable 20803 - Top Beautiful Huge 3.46 Inch Calcite Crystals From South Morocco - New Location Gift Boxed [4Vo5sIHG]
Huge and sharp crystals of calcite from a new location unpublished in the mountains of the Erich region, Morocco.Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). The Mohs scale of mineral hardness, based on s
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Durable 20803 - Top Beautiful Huge 3.46 Inch Calcite Crystals From South Morocco - New Location Gift Boxed [4Vo5sIHG]
Huge and sharp crystals of calcite from a new location unpublished in the mountains of the Erich region, Morocco.
Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 3 as "calcite".
Other polymorphs of calcium carbonate are the minerals aragonite and vaterite. Aragonite will change to calcite over timescales of days or less at temperatures exceeding 300 °C and vaterite is even less stable.
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