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Compare Minerals

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

Mineral A

VS

Mineral B

C

Cuprokalininite

Name

—

Cu(Cr³⁺Cr⁴⁺)S₄

Formula

—

Mineral Species

Entry type

—

Sulfides

Chemical class

—

Cubic

Crystal system

—

4.5–5

Mohs hardness

—

4.16

Specific gravity

—

Black

Streak

—

Submetallic

Luster

—

None

Cleavage

—

Fd-3m

Space group

—

Spinel

Structural group

—

Ckal · Approved

IMA

—

2010

Named in

—

Black with dark-bronze tint, pale cream in reflected light

Typical colors

—

Cu · Cr · S

Elements

—