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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

H

Name

—

Ca₂Fe²⁺B₂Si₂O₁₀

Formula

—

Mineral Species

Entry type

—

Silicates

Chemical class

—

Monoclinic

Crystal system

—

5

Mohs hardness

—

3.34–3.38

Specific gravity

—

Grayish

Streak

—

Resinous to vitreous

Luster

—

Indistinct

Cleavage

—

P2_1/a

Space group

—

Gadolinite

Structural group

—

Hom · Grandfathered

IMA

—

1876

Named in

—

Black to blackish brown

Typical colors

—

Ca · Fe · B · Si · O

Elements

—