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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

Ernienickelite

Name

—

NiMn⁴⁺₃O₇·3H₂O

Formula

—

Mineral Species

Entry type

—

Oxides & Hydroxides

Chemical class

—

Hexagonal

Crystal system

—

2

Mohs hardness

—

3.84

Specific gravity

—

Yellow-brown

Streak

—

Metallic, submetallic to vitreous

Luster

—

{0001}, perfect

Cleavage

—

R-3

Space group

—

—

Structural group

—

Enk · Approved

IMA

—

1993

Named in

—

Red-brown, nearly black

Typical colors

—

Ni · Mn · O · H

Elements

—