Compare Minerals

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

Mineral A

Mineral B

Name

—

Cu₂HgPb₂₂Sb₂₈S₆₄(O,S)₂

Formula

—

Mineral Species

Entry type

—

Oxides & Hydroxides

Chemical class

—

Monoclinic

Crystal system

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Mohs hardness

—

5.86

Specific gravity

—

Streak

—

Metallic

Luster

—

None

Cleavage

—

C2/m

Space group

—

Structural group

—

Rxl · Approved

IMA

—

2002

Named in

—

Black, sometimes with bluish violet iridescence, light gray in reflected light

Typical colors

—

Cu · Hg · Pb · Sb · S · O

Elements

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