Proustite

Overview

Ag3AsS3
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	5.57 g/cc
Hardness - Mohs	Proustite - 2-2.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	red, reddish gray
Streak	scarlet, red

Crystal Properties

Property	Value
Crystal structure	trigonal - hexagonal scalenohedral
Cleavage	distinct
Tenacity	-
Fracture	conchoidal
Luster	sub metallic

Similar Minerals

Dana Number : 03.04.01.01

Class: 03

Group: 03.04

Subgroup: 03.04.01 - proustite

Dana Number	Mineral Name	Formula
03.04.01.01	proustite	Ag3AsS3
03.04.01.02	pyrargyrite	Ag3SbS3

Nickel-Strunz Number : 02.GA.05

Group : 02

Subgroup : GA

Nickel-Strunz Number	Mineral Name	Formula
02.GA.05	proustite	Ag3AsS3
02.GA.05	pyrargyrite	Ag3SbS3

Specimens

Localities

Uses