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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

Name

—

NaFe₃S₅·2H₂O

Formula

—

Mineral Species

Entry type

—

Oxides & Hydroxides

Chemical class

—

Triclinic

Crystal system

—

1.5

Mohs hardness

—

2.5–2.63

Specific gravity

—

—

Streak

—

Metallic

Luster

—

Perfect on {111}

Cleavage

—

—

Space group

—

—

Structural group

—

Coy · Approved

IMA

—

1978

Named in

—

Black; in polished section, pale brownish gray with a pink tint

Typical colors

—

Na · Fe · S · H · O

Elements

—