Mineralpedia Details for Bieberite
Bieberite
Named for the type locality at the Im Lochborn copper mine in Bieber, Hesse, Germany. Bieberite is a rare to uncommon mineral that has additional localities in England, Spain, France, Australia, Zimbabwe, the United States, and Chile, among several others. It occurs as an oxidation product of colbalt-bearing sulfide arsenates in association with erythrite, annabergite, pharmacolite, cobaltite, and linnaeite. Bieberite is soluble in water and additionally will easily dehydrate to the hexahydrate moorhouseite.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/bieberite.pdf
- Formula
- CoSO4ยท7H2O
- Crystal System
- Monoclinic
- Crystal Habit
- Stalactitic, Encrustations
- Cleavage
- Perfect, None, None
- Luster
- Vitreous - Dull
- Color
- pinkish red, flesh pink
- Streak
- white
- Class
- Monoclinic - Prismatic
- Fracture
- Uneven
- Hardness
- 2
- WebMineral
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- Mindat
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Bieberite from Mine La Motte, Madison Co., Missouri, United Sates
Pink rosette like crystal aggregates to about 0.75mm with Pyrite and Siegenite.
Click thumbnail images for larger view.
