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Walter R. Kellogg


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Mineral Specimen #5182    Cobaltaustinite, Beta-Roselite

Aghbar Mine, Bou Azzer, Morocco

CaCoAsO4(OH) and Ca2Co(AsO4)2·2H2O

Two relatively rare species, dark green colored Cobaltaustinite and red violet Beta-Roselite. Unfortunately, most of the crystals are damaged with the exception of a few, micro Cobaltaustinite crystals. This is from a small collection from suburban Detroit and was in a European style clear box with a printed label on the bottom from Gunnar Faber.


Flaws: For both species, the crystals are broken.

4.8 x 2.3 x 1.2 cm


This mineral is also found in the following galleries: Minerals From Africa | Quartz | Rare Minerals | Minerals Priced Between 25 and 49 Dollars