Compare Minerals
Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.
Name
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NaCaCu₅(PO₄)₄[AsO₂(OH)₂]·7H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Monoclinic
Crystal system
—
3
Mohs hardness
—
3.65
Specific gravity
—
Pale blue
Streak
—
Vitreous
Luster
—
Perfect on (001), good on (100) and (010)
Cleavage
—
P2_1/m
Space group
—
Andyrobertsite
Structural group
—
Efv · Approved
IMA
—
2016
Named in
—
Turquoise blue, green in transmitted light
Typical colors
—
Na · Ca · Cu · P · O · As · H
Elements
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