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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

I

Name

—

(U,Fe,Y)NbO₄

Formula

—

Mineral Species

Entry type

—

Oxides & Hydroxides

Chemical class

—

Monoclinic

Crystal system

—

5–6

Mohs hardness

—

6.2–6.4

Specific gravity

—

Dark brown to black

Streak

—

Waxy, resinous to vitreous

Luster

—

—

Cleavage

—

—

Space group

—

Samarskite

Structural group

—

Ikw · Grandfathered

IMA

—

1922

Named in

—

Black

Typical colors

—

U · Fe · Y · Nb · O

Elements

—