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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

Y

Name

—

NaMgFe³⁺₂(AsO₄)₃·H₂O

Formula

—

Mineral Species

Entry type

—

Arsenates

Chemical class

—

Monoclinic

Crystal system

—

5

Mohs hardness

—

4.18

Specific gravity

—

Bright brown to yellow-gray

Streak

—

Adamantine

Luster

—

None

Cleavage

—

C2/c

Space group

—

Alluaudite

Structural group

—

Yaz · Approved

IMA

—

2003

Named in

—

Brown or brown-black

Typical colors

—

Na · Mg · Fe · As · O · H

Elements

—