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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

Romanèchite

Name

—

(Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀

Formula

—

Mineral Species

Entry type

—

Oxides & Hydroxides

Chemical class

—

Monoclinic

Crystal system

—

5–6

Mohs hardness

—

4.7–4.74

Specific gravity

—

Black, brownish black

Streak

—

Submetallic; dull when massive

Luster

—

—

Cleavage

—

C2/m

Space group

—

—

Structural group

—

Rmn · Approved

IMA

—

1900

Named in

—

Gray, Black

Typical colors

—

Ba · H · O · Mn

Elements

—