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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

Gratonite

Name

—

Pb₉As₄S₁₅

Formula

—

Mineral Species

Entry type

—

Sulfosalts

Chemical class

—

Hexagonal

Crystal system

—

2.5

Mohs hardness

—

6.22

Specific gravity

—

Black

Streak

—

Metallic

Luster

—

—

Cleavage

—

R3m

Space group

—

—

Structural group

—

Gtn · Grandfathered

IMA

—

1939

Named in

—

Dark lead-gray; in polished section, white, distinctly yellow against galena

Typical colors

—

Pb · As · S

Elements

—