Wupatkiite

Overview

(Co,Mg,Ni)Al2(SO4)4·22(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	1.87-1.92 g/cc
Hardness - Mohs	Wupatkiite - 1.5-2.0  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	pink
Streak	white

Crystal Properties

Property	Value
Crystal structure	monoclinic - prismatic
Cleavage	distinct
Tenacity	-
Fracture	splintery
Luster	silky

Similar Minerals

Dana Number : 29.07.03.07

Class: 29

Group: 29.07

Subgroup: 29.07.03 - halotrichite

Dana Number	Mineral Name	Formula
29.07.03.02	halotrichite	Fe+2Al2(SO4)4·22(H2O)
29.07.03.03	apjohnite	MnAl2(SO4)4·22(H2O)
29.07.03.07	wupatkiite	(Co,Mg,Ni)Al2(SO4)4·22(H2O)

Nickel-Strunz Number : 07.CB.85

Group : 07

Subgroup : CB

Nickel-Strunz Number	Mineral Name	Formula
07.CB.85	apjohnite	MnAl2(SO4)4·22(H2O)
07.CB.85	halotrichite	Fe+2Al2(SO4)4·22(H2O)
07.CB.85	wupatkiite	(Co,Mg,Ni)Al2(SO4)4·22(H2O)

Specimens

Localities

Uses