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Carbonate Minerals

Minerals built around the carbonate ion, following the Nickel-Strunz carbonate class. Includes calcite, calcium carbonate, the most common carbonate mineral and the chief constituent of limestone and marble. Belongs here: any mineral whose defining anion group is carbonate. Does not belong here: the sedimentary or metamorphic rock a carbonate mineral forms in bulk, such as limestone or marble, which is a rock built largely from this mineral rather than the mineral itself, grouped under Sedimentary Rocks or Metamorphic Rocks. This class holds one live entity today; further carbonate minerals such as aragonite or magnesite have a real home waiting here as later mint waves add them, rather than a scheme invented to avoid a small class.

Facts
Comparison
Formation Origin
Contain the carbonate ion, CO3(2-). 1
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Classifies

Aragonite, Materials

Entity-backed identity for the material classification this material already carries as an enum fact, pointing at the class subcategory of the same name. The enum fact itself stays on the entity unchanged.

Calcite, Materials

Entity-backed identity for the material classification this material already carries as an enum fact, pointing at the class subcategory of the same name. The enum fact itself stays on the entity unchanged.

Malachite, Materials

Entity-backed identity for the material classification this material already carries as an enum fact, pointing at the class subcategory of the same name. The enum fact itself stays on the entity unchanged.

Sources
1. Wikipedia: Carbonate minerals
WikipediaCarbonate minerals, lead section
Quote, Carbonate minerals, lead section
Carbonate minerals are those minerals containing the carbonate ion, CO2-3.
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