Photo: Wikimedia Commons

Rare mineral that can be found in cuprite and in low-grade copper sulfide ores in shale and carbonate rocks.

Properties

Chemical formula

Ag₁₁Hg₂

Group

Carbonates

Crystal system

Cubic

Hardness (Mohs)

—

Color

—

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

I-43m

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

1.AD.15c

Dana classification

—

IMA status

Approved mineral and/or valid name (A)

IMA symbol

Eug

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata