Erythrite | ‪#‎Geology

Formula: Co3(AsO4)2·8H2O
System: Monoclinic
Colour: Crimson to peach red, ...
Hardness: 1½ - 2½
Member of: Vivianite Group
Name: Named in 1832 by Francois Sulpice Beaudant From the Greek έρυθρος for red.

From Ightem, Bou Azer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco.

Photo & Collection: Serge Lavarde.

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