Coquimbite

Overview

Fe+32(SO4)3·9(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	2-2.1 g/cc
Hardness - Mohs	Coquimbite - 2  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	white, purple
Streak	white

Crystal Properties

Property	Value
Crystal structure	trigonal - hexagonal scalenohedral
Cleavage	imperfect
Tenacity	-
Fracture	uneven
Luster	vitreous, glassy

Similar Minerals

Dana Number : 29.08.03.01

Class: 29

Group: 29.08

Subgroup: 29.08.03 - coquimbite

Dana Number	Mineral Name	Formula
29.08.03.01	coquimbite	Fe+32(SO4)3·9(H2O)

Nickel-Strunz Number : 07.CB.50

Group : 07

Subgroup : CB

Nickel-Strunz Number	Mineral Name	Formula
07.CB.50	coquimbite	Fe+32(SO4)3·9(H2O)

Specimens

Localities

Uses