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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K₇(Mg,Mn²⁺,Fe²⁺,Zn)₄₈(Si,Al)₇₂(O,OH)₂₁₆·16H₂O

Formula

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Mineral Species

Entry type

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Silicates

Chemical class

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Crystal system

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Mohs hardness

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2.72

Specific gravity

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Brown

Streak

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Vitreous to resinous

Luster

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Perfect on {001}, imperfect on fhk0g

Cleavage

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Space group

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Stilpnomelane, Clay

Structural group

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Lnl · Approved

IMA

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1982

Named in

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Dark brown, light green; black in aggregates

Typical colors

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K · Mg · Mn · Fe · Zn · Si · Al · O · H

Elements

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