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

Grossite

Name

—

CaAl₄O₇

Formula

—

Mineral Species

Entry type

—

Oxides & Hydroxides

Chemical class

—

Monoclinic

Crystal system

—

—

Mohs hardness

—

2.88

Specific gravity

—

White

Streak

—

Vitreous

Luster

—

—

Cleavage

—

C2/c

Space group

—

—

Structural group

—

Gss · Approved

IMA

—

1993

Named in

—

White to colorless

Typical colors

—

Ca · Al · O

Elements

—