Proustite

Proustite – Ag₃AsS₃

Elements: Silver, Arsenic, Sulfur

Class: Sulfides – Sulfosalts

Crystal System: Hexagonal

Hardness: 2-2.5

Gypsum

Talc (1)Diamond (10)

Soft. A fingernail can scratch it.

Origin: Imiter Mine, inghir Province, Drâa-Tafilalet Region – Morocco

Did you know?

Known as ruby silver, proustite forms translucent scarlet crystals, rarely seen fresh because light slowly darkens them.