Compare Minerals

Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.

Mineral A

Mineral B

Poyarkovite

Name

—

Hg₃OCl

Formula

—

Mineral Species

Entry type

—

Halides

Chemical class

—

Monoclinic

Crystal system

—

2–2.5

Mohs hardness

—

9.56

Specific gravity

—

Red

Streak

—

Vitreous to adamantine

Luster

—

Cleavage

—

C2/c

Space group

—

Structural group

—

Poy · Approved

IMA

—

1980

Named in

—

Deep raspberry-red to cherry-red, turns black on exposure; deep red or brownish red in transmitted light

Typical colors

—

Hg · O · Cl

Elements

—