Compare Minerals

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

Mineral A

Mineral B

Guérinite

Name

—

Ca₅(AsO₃OH)₂(AsO₄)₂·9H₂O

Formula

—

Mineral Species

Entry type

—

Arsenates

Chemical class

—

Monoclinic

Crystal system

—

1.5

Mohs hardness

—

2.68–2.76

Specific gravity

—

Streak

—

Vitreous to pearly

Luster

—

Perfect, k plane of the plates; good, k elongation; poor, ⊥ to elongation

Cleavage

—

P2_1/n

Space group

—

Structural group

—

Gué · Approved

IMA

—

1961

Named in

—

Colorless, white

Typical colors

—

Ca · As · O · H

Elements

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