Guanacoite

Overview

Cu2Mg3(AsO4)2(OH)4·4(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.31 g/cc
Hardness - Mohs	Guanacoite - 3  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	blue
Streak	pale blue

Crystal Properties

Property	Value
Crystal structure	monoclinic - prismatic
Cleavage	distinct
Tenacity	brittle
Fracture	uneven
Luster	vitreous, glassy

Similar Minerals

Dana Number : 42.04.01.02

Class: 42

Group: 42.04

Subgroup: 42.04.01 - akrochordite

Dana Number	Mineral Name	Formula
42.04.01.02	guanacoite	Cu2Mg3(AsO4)2(OH)4·4(H2O)

Nickel-Strunz Number : 08.DD.10

Group : 08

Subgroup : DD

Nickel-Strunz Number	Mineral Name	Formula
08.DD.10	guanacoite	Cu2Mg3(AsO4)2(OH)4·4(H2O)

Specimens

Localities

Uses