Compare Minerals

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

Mineral A

Mineral B

Kainotropite

Name

—

Cu₄Fe³⁺O₂(V₂O₇)(VO₄)

Formula

—

Mineral Species

Entry type

—

Vanadates

Chemical class

—

Orthorhombic

Crystal system

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Mohs hardness

—

4.104

Specific gravity

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Dark brown-red

Streak

—

Semimetallic

Luster

—

None

Cleavage

—

Pnma

Space group

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Structural group

—

Ktr · Approved

IMA

—

2015

Named in

—

Iron-black to reddish black, gray in reflected light with strong brown-red internal reflections

Typical colors

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Cu · Fe · O · V

Elements

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