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

—

Na(Cu,Fe,Zn)₂S₂

Formula

—

Mineral Species

Entry type

—

Sulfides

Chemical class

—

Hexagonal

Crystal system

—

Mohs hardness

—

3.94

Specific gravity

—

Streak

—

Metallic

Luster

—

Perfect on {0001}

Cleavage

—

P3m1

Space group

—

Structural group

—

Cvi · Approved

IMA

—

1987

Named in

—

Bronze, tarnishing to a sooty black coating; in reflected light, orange, changing to rosy purple with time

Typical colors

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Na · Cu · Fe · Zn · S

Elements

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