Calcite
Query URLs
https://term.museum-digital.de/md-de/tag/987
- Note
- 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 on scratch hardness comparison. Large calcite crystals are used in optical equipment, and limestone composed mostly of calcite has numerous uses.
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.
-
-
-
Quarz, Kalkspat, Pyrit
Quarz ist nach den Feldspäten...
Object information
Image: Harzmuseum Wernigerode - CC BY-NC-SA -
-
Calcit auf Amethyst
Calcit auf Amethyst aus...
Object information
Image: Naturhistorisches Museum Mainz / Landessammlung für Naturkunde Rheinland-Pfalz - CC BY-NC-SA
References
Synonyms
[]