Dioptase

Overview

Cu6Si6O18·6(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.28-3.35 g/cc
Hardness - Mohs	Dioptase - 5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	green, blue
Streak	green

Crystal Properties

Property	Value
Crystal structure	trigonal - rhombohedral
Cleavage	good
Tenacity	brittle
Fracture	conchoidal
Luster	vitreous, glassy

Similar Minerals

Dana Number : 61.01.03.01

Class: 61

Group: 61.01

Subgroup: 61.01.03 - dioptase

Dana Number	Mineral Name	Formula
61.01.03.01	dioptase	Cu6Si6O18·6(H2O)

Nickel-Strunz Number : 09.CJ.30

Group : 09

Subgroup : CJ

Nickel-Strunz Number	Mineral Name	Formula
09.CJ.30	dioptase	Cu6Si6O18·6(H2O)

Specimens

Localities

Uses