Mineral Factbook

Bieberite

Co(SO4)·7H2OIMA symbol: Biegrandfathered

Bieberite is a sulfate mineral with the formula Co(SO4)·7H2O, crystallizing in the monoclinic system. It has typically red or rose in color, with a vitreous luster, a specific gravity of 1.924.

Photos

Bieberite specimen photo
Mai Seppel · CC BY-SA 4.0 · Commons
Bieberite specimen photo
John Sobolewski (JSS) · CC BY 3.0 · Commons

Physical properties

Specific gravity
1.924 g/cm3single sourceDana, System of Mineralogy, 6th ed. (1892)
Color
red, rosesingle sourceDana, System of Mineralogy, 6th ed. (1892)
Luster
vitreoussingle sourceDana, System of Mineralogy, 6th ed. (1892)

Chemistry (calculated)

Molecular weight281.1 g/molcalculated from the IMA formula
Composition (wt%)Co 20.97%, S 11.41%, O 62.61%, H 5.02%

Classification

Nickel-Strunz (10th)7.CB.35Wikidata (CC0)
Nickel-Strunz (9th)7.CB.35Wikidata (CC0)