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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

Nullaginite

Name

—

Ni₂(CO₃)(OH)₂

Formula

—

Mineral Species

Entry type

—

Carbonates

Chemical class

—

Monoclinic

Crystal system

—

—

Mohs hardness

—

3.56

Specific gravity

—

—

Streak

—

Dull, claylike, silky in cross-vein fibers

Luster

—

—

Cleavage

—

—

Space group

—

Malachite

Structural group

—

Nlg · Approved

IMA

—

1978

Named in

—

Bright green; pale green in transmitted light

Typical colors

—

Ni · C · O · H

Elements

—