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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

Kurchatovite

Name

—

CaMgB₂O₅

Formula

—

Mineral Species

Entry type

—

Borates

Chemical class

—

Orthorhombic

Crystal system

—

4.5

Mohs hardness

—

3.02

Specific gravity

—

—

Streak

—

Vitreous

Luster

—

One perfect, parallel elongation; two others, imperfect

Cleavage

—

Pbca

Space group

—

—

Structural group

—

Kht · Approved

IMA

—

1965

Named in

—

Pale gray

Typical colors

—

Ca · Mg · B · O

Elements

—