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

Coffinite

Name

—

U(SiO₄)·nH₂O

Formula

—

Mineral Species

Entry type

—

Silicates

Chemical class

—

Tetragonal

Crystal system

—

5–6

Mohs hardness

—

5.1

Specific gravity

—

white

Streak

—

Dull to adamantine

Luster

—

—

Cleavage

—

I4_1/amd

Space group

—

Zircon

Structural group

—

Cof · Grandfathered

IMA

—

1955

Named in

—

Black, Brown

Typical colors

—

U · Si · O · H

Elements

—