Realgar

Overview

As4S4
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.56 g/cc
Hardness - Mohs	Realgar - 1.5-2  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	red, orange, yellow
Streak	orange-red

Crystal Properties

Property	Value
Crystal structure	monoclinic - prismatic
Cleavage	good
Tenacity	sectile
Fracture	conchoidal
Luster	resinous

Similar Minerals

Dana Number : 02.08.22.01

Class: 02

Group: 02.08

Subgroup: 02.08.22 - realgar

Dana Number	Mineral Name	Formula
02.08.22.01	realgar	As4S4
02.08.22.02	pararealgar	AsS
02.08.22.03	uzonite	As4S5
02.08.22.04	alacránite	As8S9

Nickel-Strunz Number : 02.FA.15a

Group : 02

Subgroup : FA

Nickel-Strunz Number	Mineral Name	Formula
02.FA.15a	realgar	As4S4

Specimens

Localities

Uses