Adelite

Overview

CaMg(AsO4)(OH)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.73-3.79 g/cc
Hardness - Mohs	Adelite - 5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	blue gray, green, gray, yellow, light green
Streak	white

Crystal Properties

Property	Value
Crystal structure	orthorhombic - disphenoidal
Cleavage	Indistinct
Tenacity	brittle
Fracture	conchoidal
Luster	resinous

Similar Minerals

Dana Number : 41.05.01.01

Class: 41

Group: 41.05

Subgroup: 41.05.01 - adelite

Dana Number	Mineral Name	Formula
41.05.01.01	adelite	CaMg(AsO4)(OH)
41.05.01.02	conichalcite	CaCu(AsO4)(OH)
41.05.01.05	gabrielsonite	PbFe+2(AsO4)(OH)
41.05.01.06	tangeite	CaCu(VO4)(OH)
41.05.01.09	arsendescloizite	PbZn(AsO4)(OH)

Nickel-Strunz Number : 08.BH.35

Group : 08

Subgroup : BH

Nickel-Strunz Number	Mineral Name	Formula
08.BH.35	adelite	CaMg(AsO4)(OH)
08.BH.35	arsendescloizite	PbZn(AsO4)(OH)
08.BH.35	austinite	CaZn(AsO4)(OH)
08.BH.35	conichalcite	CaCu(AsO4)(OH)
08.BH.35	duftite	PbCu(AsO4)(OH)
08.BH.35	gabrielsonite	PbFe+2(AsO4)(OH)
08.BH.35	tangeite	CaCu(VO4)(OH)

Specimens

Localities

Uses