Compare Minerals

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

Mineral A

Mineral B

Pearceite

Name

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[Ag₉CuS₄][(Ag,Cu)₆(As,Sb)₂S₇]

Formula

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Mineral Species

Entry type

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Sulfosalts

Chemical class

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Hexagonal

Crystal system

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Mohs hardness

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6.15

Specific gravity

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Black

Streak

—

Metallic

Luster

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Cleavage

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P-3m1

Space group

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Polybasite

Structural group

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Pea · Approved

IMA

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1896

Named in

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Dull black; in polished section, white, with very dark red internal reflections

Typical colors

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Ag · Cu · S · As · Sb

Elements

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