22098 - Nice Pink Erythrite Crystals on Matrix - Bou Azzer Mine (South Morocco)
22098 - Nice Pink Erythrite Crystals on Matrix - Bou Azzer Mine (South Morocco) 22098 - Nice Pink Erythrite Crystals on Matrix - Bou Azzer Mine (South Morocco) 22098 - Nice Pink Erythrite Crystals on Matrix - Bou Azzer Mine (South Morocco) 22098 - Nice Pink Erythrite Crystals on Matrix - Bou Azzer Mine (South Morocco) 22098 - Nice Pink Erythrite Crystals on Matrix - Bou Azzer Mine (South Morocco)

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22098 - Nice Pink Erythrite Crystals on Matrix - Bou Azzer Mine (South Morocco)

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Species
Erythrite Crystals on Matrix
Age
-
Location
Ouarzazate, South Morocco
Formation
Co–Ni–As bearing mineral deposits - Bou Azzer Mines
Size
70.9 mm   •    in
Weight
95 g   •    oz
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Description

Erythrite or red cobalt is a secondary hydrated cobalt arsenate mineral with the formula (Co3(AsO4)2·8H2O). Erythrite and annabergite (Ni3(AsO4)2·8H2O) (nickel arsenate) form a complete series with the general formula (Co,Ni)3(AsO4)2·8H2O. Erythrite crystallizes in the monoclinic system and forms prismatic crystals. The color is crimson to pink and occurs as a secondary coating known as cobalt bloom on cobalt arsenide minerals. Well-formed crystals are rare, with most of the mineral manifesting in crusts or small reniform aggregates.

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