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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(K,Na,Ca)(Al,Si)₄O₈

Formula

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Mineral Group

Entry type

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Silicates

Chemical class

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Triclinic

Crystal system

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6–6.5

Mohs hardness

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2.55–2.76

Specific gravity

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White

Streak

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Vitreous, Pearly on cleavage faces

Luster

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Two good cleavages meeting at or near 90°

Cleavage

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C2/m, C-1 or P-1 depending on species

Space group

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Structural group

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IMA

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Named in

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White, Pink, Gray, Colorless

Typical colors

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Elements

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