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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

Moonstone

Name

—

KAlSi₃O₈

Formula

—

Variety

Entry type

—

Silicates

Chemical class

—

Monoclinic

Crystal system

—

6–6.5

Mohs hardness

—

2.55–2.63

Specific gravity

—

White

Streak

—

Vitreous, Pearly

Luster

—

Perfect on {001}, good on {010}

Cleavage

—

—

Space group

—

—

Structural group

—

—

IMA

—

—

Named in

—

White, Colorless, Blue, Gray, Brown

Typical colors

—

—

Elements

—