Compare Minerals

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

Mineral A

Mineral B

Name

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Ca₄[Mg₉Sb⁵⁺₃]O₄[Si₆Be₃AlFe³⁺₂O₃₆]

Formula

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Mineral Species

Entry type

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Silicates

Chemical class

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Triclinic

Crystal system

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Mohs hardness

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3.77

Specific gravity

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Pale brown

Streak

—

Subadamantine

Luster

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Cleavage

—

Space group

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Sapphirine

Structural group

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Wel · Approved

IMA

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1973

Named in

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Deep reddish brown to reddish black; brownish orange in transmitted light

Typical colors

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Ca · Mg · Sb · O · Si · Be · Al · Fe

Elements

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