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Mineral A

VS

Mineral B

C

Calciosamarskite

Name

—

(Ca,Fe,Y)(Nb,Ta,Ti)O₄

Formula

—

Mineral Species

Entry type

—

Oxides & Hydroxides

Chemical class

—

Monoclinic

Crystal system

—

5–6

Mohs hardness

—

5.8

Specific gravity

—

Brown to black

Streak

—

Vitreous

Luster

—

None

Cleavage

—

—

Space group

—

Samarskite

Structural group

—

Csmk · Grandfathered

IMA

—

1928

Named in

—

Black

Typical colors

—

Ca · Fe · Y · Nb · Ta · Ti · O

Elements

—