Beautiful Proustite Crystals from Morocco

Proustite |
Formula: Ag₃AsS₃
System: Trigonal
Colour: Scarlet, Vermilion or ...
Lustre: Adamantine
Hardness: 2 - 2½

From: Imiter Mine, Imiter, Djebel Saghro, Ouarzazate, Souss-Massa-Draâ, Morocco

Photo Credit: Christian Rewitzer