Nickeline

Overview

NiAs
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	7.78-7.8 g/cc
Hardness - Mohs	Nickeline - 5.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	gray, copper, black
Streak	brownish black

Crystal Properties

Property	Value
Crystal structure	hexagonal - dihexagonal dipyramidal
Cleavage	imperfect
Tenacity	brittle
Fracture	conchoidal
Luster	metallic

Similar Minerals

Dana Number : 02.08.11.01

Class: 02

Group: 02.08

Subgroup: 02.08.11 - nickeline

Dana Number	Mineral Name	Formula
02.08.11.01	nickeline	NiAs
02.08.11.09	langisite	(Co,Ni)As

Nickel-Strunz Number : 02.CC.05

Group : 02

Subgroup : CC

Nickel-Strunz Number	Mineral Name	Formula
02.CC.05	langisite	(Co,Ni)As
02.CC.05	nickeline	NiAs

Specimens

Localities

Uses