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

Hatchite

Name

—

AgTlPbAs₂S₅

Formula

—

Mineral Species

Entry type

—

Sulfosalts

Chemical class

—

Triclinic

Crystal system

—

—

Mohs hardness

—

5.8

Specific gravity

—

Chocolate-brown. R1 –R2: n.d

Streak

—

—

Luster

—

—

Cleavage

—

P-1

Space group

—

—

Structural group

—

Hat · Grandfathered

IMA

—

1912

Named in

—

Lead-gray; dark red in transmitted light

Typical colors

—

Ag · Tl · Pb · As · S

Elements

—