Carbonate minerals

Carbonate minerals

Carbonate minerals are those minerals containing the carbonate ion: CO32-.

Carbonate classes

Anhydrous carbonates

*Calcite group: Trigonal
**Calcite CaCO3
**Gaspeite (Ni,Mg,Fe2+)CO3
**Magnesite MgCO3
**Otavite CdCO3
**Rhodochrosite MnCO3
**Siderite FeCO3
**Smithsonite ZnCO3
**Sphaerocobaltite CoCO3
*Aragonite group: Orthorhombic
**Aragonite CaCO3
**Cerussite PbCO3
**Strontianite SrCO3
**Witherite BaCO3
**Rutherfordine UO2CO3
**Natrite Na2CO3

Anhydrous carbonates with compound formulas

*Dolomite group: Trigonal
**Ankerite CaFe(CO3)2
**Dolomite CaMg(CO3)2
**Minrecordite CaZn(CO3)2
**Barytocite BaCa(CO3)2

Carbonates with hydroxyl or halogen

*Carbonate with hydroxide: Monoclinic
**Azurite Cu3(CO3)2(OH)2
**Hydrocerussite Pb3(CO3)2(OH)2
**Malachite Cu2CO3(OH)2
**Roassite (Cu,Zn)2CO3(OH)2
**Phosgenite Pb2(CO3)Cl2
**Hydrozincite Zn5(CO3)2(OH)6
**Aurichalcite (Zn,Cu)5(CO3)2(OH)6

Hydrated carbonates

*Ikaite CaCO3.6(H2O)
*Lansfordite MgCO3·5(H2O)
*Monohydrocalcite CaCO3.H2O
*Natron Na2CO3·10(H2O)
*Zellerite Ca(UO2)(CO3)2·5(H2O)

The carbonate class in both the Dana and the Strunz classification systems includes the nitrates, the borates, and the iodates.

References

* Hurlbut, Cornelius S.; Klein, Cornelis, 1985, Manual of Mineralogy, 20th ed., ISBN 0-471-80580-7
* [http://webmineral.com/danaclass.shtml Webmineral Dana Classification]


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