Compare Minerals

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

Mineral A

Mineral B

Tancoite

Name

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LiNa₂Al(PO₄)(PO₃OH)(OH)

Formula

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Mineral Species

Entry type

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Phosphates

Chemical class

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Orthorhombic

Crystal system

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4–4.5

Mohs hardness

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2.752

Specific gravity

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White

Streak

—

Vitreous

Luster

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On {010} and {100}, fair

Cleavage

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Pbcb

Space group

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Structural group

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Tco · Approved

IMA

—

1979

Named in

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Colorless to pale pink; colorless in transmitted light

Typical colors

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Li · Na · Al · P · O · H

Elements

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