ERINITE (Cu3As2O8.2Cu(OH)2)
Class: phosphate
Rarity: Very Rare Crystal:  crystal with a mammillary habit 
Colour: green;   Lustre: unknown;   Cleavage: perfect;   Fracture: unknown;  
Hardness - between 5 and: 5;   Density - between 4 and: 4
Dana number: 716

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