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Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.

VS
A
Name
—
[Cu₅O₂](AsO₄)(VO₄)·(Cu₀.₅   ₀.₅)Cl
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
Monoclinic
Crystal system
—
—
Mohs hardness
—
4.887
Specific gravity
—
Reddish black
Streak
—
Close to adamantine
Luster
—
None
Cleavage
—
C2/m
Space group
—
—
Structural group
—
Aeu · Approved
IMA
—
2018
Named in
—
Dark red, gray with a yellowish tint in reflected light with abundant, brown-red internal reflections
Typical colors
—
Cu · O · As · V · Cl
Elements
—