Compare Minerals

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

Mineral A

Mineral B

Murunskite

Name

—

K₂(Cu,Fe)₄S₄

Formula

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Mineral Species

Entry type

—

Sulfides

Chemical class

—

Tetragonal

Crystal system

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Mohs hardness

—

3.86

Specific gravity

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Streak

—

Metallic. Anisotropism: Moderate, gray to brownish gray with a bluish tint. R: (400) —, (420) —, (440) 15.0

Luster

—

Imperfect

Cleavage

—

I4/mmm

Space group

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Bukovite

Structural group

—

Mu · Approved

IMA

—

1980

Named in

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Copper-red to pinchbeck-brown, iridescent; grayish orange- cream in reflected light

Typical colors

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K · Cu · Fe · S

Elements

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