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

E

Name

—

Cu₄O(AsO₄)₂

Formula

—

Mineral Species

Entry type

—

Arsenates

Chemical class

—

Triclinic

Crystal system

—

3.5

Mohs hardness

—

5.036

Specific gravity

—

Light green

Streak

—

Vitreous

Luster

—

Distinct, one direction (observed under the microscope)

Cleavage

—

P-1

Space group

—

—

Structural group

—

Elx · Approved

IMA

—

2013

Named in

—

Green to dark green

Typical colors

—

Cu · O · As

Elements

—