Compare Minerals

Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.

Mineral A

Mineral B

Bernarlottiite

Name

—

Pb₁₂(As₁₀Sb₆)S₃₆

Formula

—

Mineral Species

Entry type

—

Sulfosalts

Chemical class

—

Triclinic

Crystal system

—

Mohs hardness

—

5.601

Specific gravity

—

Black

Streak

—

Metallic. Anisotropism: Distinct to strong in grayish to bluish tints. Bireflectance: Distinct. Pleochrism: Weak

Luster

—

None

Cleavage

—

P-1

Space group

—

Structural group

—

Bl · Approved

IMA

—

2013

Named in

—

Lead-gray; white in reflected light with red internal reflections

Typical colors

—

Pb · As · Sb · S

Elements

—