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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

Alum-(K)

Name

—

KAl(SO₄)₂·12H₂O

Formula

—

Mineral Species

Entry type

—

Sulfates

Chemical class

—

Cubic

Crystal system

—

2.25

Mohs hardness

—

1.757

Specific gravity

—

—

Streak

—

—

Luster

—

—

Cleavage

—

Pa3

Space group

—

Alum

Structural group

—

Aum-K · Approved

IMA

—

1951

Named in

—

—

Typical colors

—

K · Al · S · O · H

Elements

—