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

—

Cr₃S₄

Formula

—

Mineral Species

Entry type

—

Sulfides

Chemical class

—

Monoclinic

Crystal system

—

—

Mohs hardness

—

4.12

Specific gravity

—

—

Streak

—

—

Luster

—

—

Cleavage

—

I2/m

Space group

—

Wilkmanite

Structural group

—

Bzn · Approved

IMA

—

1969

Named in

—

Brownish gray in polished section; synthetic brezinaite is dull gray. R1 –R2: n.d

Typical colors

—

Cr · S

Elements

—