Compare Minerals

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

Mineral A

Mineral B

Barrotite

Name

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Cu₉Al(HSiO₄)₂[(SO₄)(HAsO₄)₀.₅](OH)₁₂·8H₂O

Formula

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Mineral Species

Entry type

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Silicates

Chemical class

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Hexagonal

Crystal system

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Mohs hardness

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2.9

Specific gravity

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Pale blue

Streak

—

Vitreous to subadamantine

Luster

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Perfect mica-like on {001}

Cleavage

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P3_1

Space group

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Chalcophyllite

Structural group

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Bro · Approved

IMA

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2011

Named in

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Intense blue

Typical colors

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Cu · Al · H · Si · O · S · As

Elements

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