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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

Joséite-B

Name

—

Bi₄Te₂S

Formula

—

Mineral Species

Entry type

—

Sulfides

Chemical class

—

—

Crystal system

—

—

Mohs hardness

—

8.3

Specific gravity

—

—

Streak

—

—

Luster

—

{0001}, perfect

Cleavage

—

—

Space group

—

Tetradymite

Structural group

—

Js-B · Questionable

IMA

—

1949

Named in

—

Steel-gray; creamy white in reflected light. Anisotropism: Distinct, gray to dark brown

Typical colors

—

Bi · Te · S

Elements

—