Compare Minerals

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

Mineral A

Mineral B

Radtkeite

Name

—

Hg₃S₂ClI

Formula

—

Mineral Species

Entry type

—

Sulfides

Chemical class

—

Monoclinic

Crystal system

—

2–3

Mohs hardness

—

Specific gravity

—

Yellow-orange, blackening on exposure to light

Streak

—

Nearly adamantine (synthetic)

Luster

—

{010}, perfect; {001}, {100}, very good; {0kl}, {h0l}, and {hk0}, good (synthetic)

Cleavage

—

C2/m

Space group

—

Structural group

—

Rdk · Approved

IMA

—

1989

Named in

—

Bright yellow-orange to dull orange; on exposure to light immediately darkens through yellow-brown to black

Typical colors

—

Hg · S · Cl · I

Elements

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