The open encyclopedia of minerals

Glossary Cite the database

Mineralogist.org

Minerals A–Z Search Collections Browse by Property Identify a Specimen Compare Minerals Localities Map Glossary Contribute Search the Database →

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

B

Name

—

Pb₂Bi₂(S,Se)₃

Formula

—

Mineral Species

Entry type

—

Sulfosalts

Chemical class

—

Hexagonal

Crystal system

—

2

Mohs hardness

—

8.096

Specific gravity

—

Gray

Streak

—

Metallic

Luster

—

Perfect, on {001}

Cleavage

—

—

Space group

—

Tetradymite

Structural group

—

Bbk · Approved

IMA

—

1994

Named in

—

Silvery gray; in reflected light, white with yellowish tint

Typical colors

—

Pb · Bi · S · Se

Elements

—