Excellent Erythrite

Erythrite | ‪#‎Geology

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

From: Bou Azzer, Tazenakht, Ouarzazate, Souss-Massa-Draâ, Morocco


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