Gillardite

Overview

Cu3NiCl2(OH)6
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.76 g/cc
Hardness - Mohs	Gillardite - 3  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	green
Streak	green

Crystal Properties

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

Similar Minerals

Dana Number : 10.01.01.03

Class: 10

Group: 10.01

Subgroup: 10.01.01 - atacamite

Dana Number	Mineral Name	Formula
10.01.01.01	atacamite	Cu+22Cl(OH)3
10.01.01.03	gillardite	Cu3NiCl2(OH)6
10.01.01.04	haydeeite	Cu3Mg(OH)6Cl2

Nickel-Strunz Number : 03.DA.10c

Group : 03

Subgroup : DA

Nickel-Strunz Number	Mineral Name	Formula
03.DA.10c	gillardite	Cu3NiCl2(OH)6
03.DA.10c	haydeeite	Cu3Mg(OH)6Cl2
03.DA.10c	kapellasite	Cu3Zn(OH)6Cl2

Specimens

Localities

Uses