Compare Minerals

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

Mineral A

Mineral B

Eleomelanite

Name

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(K₂Pb)Cu₄O₂(SO₄)₄

Formula

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Mineral Species

Entry type

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Sulfates

Chemical class

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Monoclinic

Crystal system

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Mohs hardness

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3.79

Specific gravity

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Dark green

Streak

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Oleaginous on crystal faces, vitreous on cleavage surfaces

Luster

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Perfect on {001}

Cleavage

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P2_1/n

Space group

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Structural group

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Elm · Approved

IMA

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2015

Named in

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Black, dark green in thin fragments

Typical colors

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K · Pb · Cu · O · S

Elements

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