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

Sepiolite

Name

—

Mg₄Si₆O₁₅(OH)₂·6H₂O

Formula

—

Mineral Species

Entry type

—

Silicates

Chemical class

—

Orthorhombic

Crystal system

—

2–2.5

Mohs hardness

—

2

Specific gravity

—

white

Streak

—

Dull

Luster

—

—

Cleavage

—

Pncn

Space group

—

Sepiolite, Clay

Structural group

—

Sep · Grandfathered

IMA

—

1847

Named in

—

White, Gray, Yellow

Typical colors

—

Mg · Si · O · H

Elements

—