Compare Minerals

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

Mineral A

Mineral B

Dissakisite-(La)

Name

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CaLa(Al₂Mg)[Si₂O₇][SiO₄]O(OH)

Formula

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Mineral Species

Entry type

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Silicates

Chemical class

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Monoclinic

Crystal system

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6.5–7

Mohs hardness

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3.79

Specific gravity

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Gray-greenish

Streak

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Pitch-like to vitreous

Luster

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Imperfect on (001)

Cleavage

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P2_1/m

Space group

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Epidote, allanite

Structural group

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Dis-La · Approved

IMA

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2003

Named in

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Black to very dark brown, pale brown with a greenish tint in thin section

Typical colors

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Ca · La · Al · Mg · Si · O · H

Elements

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