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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Cu₂FeGeS₄

Formula

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Mineral Species

Entry type

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Sulfides

Chemical class

—

Tetragonal

Crystal system

—

4.5

Mohs hardness

—

4.337

Specific gravity

—

Streak

—

Luster

—

Cleavage

—

I-42m

Space group

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Sphalerite, Stannite

Structural group

—

Btt · Approved

IMA

—

1965

Named in

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Gray to gray-blue in reflected light. Anisotropism: Weak in air, distinct in oil. R: (400) 23.4, (420) 24.2

Typical colors

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Cu · Fe · Ge · S

Elements

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