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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

M

Name

—

HgI

Formula

—

Mineral Species

Entry type

—

Halides

Chemical class

—

Tetragonal

Crystal system

—

1–2

Mohs hardness

—

7.75

Specific gravity

—

Brown

Streak

—

Adamantine

Luster

—

Imperfect

Cleavage

—

I4/mmm

Space group

—

—

Structural group

—

Msch · Approved

IMA

—

1987

Named in

—

Citrus-yellow, changing immediately to dark olive-green on exposure to light

Typical colors

—

Hg · I

Elements

—