General Information:
Chemical Formula:Cu6As
Composition:(Molecular Weight = 456.20 gm)Copper 83.58 %
CuArsenic 16.42 %
As Empirical Formula: Cu6As
Environment:Hydrothermal deposits associated with other copper arsenides.
Locality:TL: Chile, Algodones silver mn, Coquimbo
Name Origin:Named for the locality.
Physical Properties: Cleavage:None
Color:gray, silver white, steel gray, or tarnishes dull bronze.
Density:8.38 - 8.72, Average = 8.55
Diaphaniety:Opaque
Habits:Massive - Granular - Common texture observed in granite and other igneous rock., Tarnishes - Freshly fractured surfaces form a surface oxidation film,
Hardness:4 - Fluorite
Luminescence:Non-fluorescent.
Luster:Metallic
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