Mineral Factbook

Copiapite

Fe2+Fe3+4(SO4)6(OH)2·20H2OIMA symbol: Cpigrandfathered

Copiapite is a sulfate mineral with the formula Fe2+Fe3+4(SO4)6(OH)2·20H2O, crystallizing in the triclinic system. It has a Mohs hardness of 2-5, typically yellow in color, with a pearly luster, a specific gravity of 2.103.

Photos

Copiapite specimen photo
Robert M. Lavinsky · CC BY-SA 3.0 · Commons
Copiapite specimen photo
Robert M. Lavinsky · CC BY-SA 3.0 · Commons
Copiapite specimen photo
Robert M. Lavinsky · CC BY-SA 3.0 · Commons
Copiapite specimen photo
Robert M. Lavinsky · CC BY-SA 3.0 · Commons

Physical properties

Hardness (Mohs)
2-5single sourceDana, System of Mineralogy, 6th ed. (1892)
Specific gravity
2.103 g/cm3single sourceDana, System of Mineralogy, 6th ed. (1892)
Color
yellowsingle sourceDana, System of Mineralogy, 6th ed. (1892)
Luster
pearlysingle sourceDana, System of Mineralogy, 6th ed. (1892)

Classification

Nickel-Strunz (10th)7.DB.35Wikidata (CC0)
Nickel-Strunz (9th)7.DB.35Wikidata (CC0)
Dana (8th)31.10.5.1Wikidata (CC0)