Compare Minerals

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

Mineral A

Mineral B

Guettardite

Name

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Pb₈(Sb₀.₅₆As₀.₄₄)₁₆S₃₂

Formula

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Mineral Species

Entry type

—

Sulfosalts

Chemical class

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Monoclinic

Crystal system

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Mohs hardness

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5.26

Specific gravity

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Streak

—

Metallic

Luster

—

Perfect on {001}

Cleavage

—

P2_1/a

Space group

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Sartorite

Structural group

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Gue · Approved

IMA

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1966

Named in

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Grayish black; in polished section, white with reddish internal reflections

Typical colors

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Pb · Sb · As · S

Elements

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