Calcite
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Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate. It is a very common mineral, particularly as a component of limestone. Calcite defines hardness 3 on the Mohs scale o
Rhombohedral calcite
Scalenohedral calcite
Prismatic calcite
Prismatic calcite
Calcium carbonate
Videos
Calcium carbonate is a chemical compound with the chemical formula CaCO3. It is a common substance found in rocks as the minerals calcite and aragonite, most notably in chalk and limestone, eggshells,
Calcite
…Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). It is a very common mineral, particularly as a component of limestone. Calcite defines hardness 3 on the Mohs scale of mineral hardness, based…
Calcium carbonate
Calcite is the most stable polymorph of calcium carbonate. It is transparent to opaque. A transparent variety called Iceland spar (shown here) was used to create polarized light in the 19th century.
Calcium carbonate chunks from clamshell
Surface precipitation of CaCO3 as tufa in Rubaksa, Ethiopia