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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.

Incredible Erythrite from Aghbar Mine, Bou Azzer, Morocco.
 
Credit: ShelterRockMinerals

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