Legrandite

Overview

Zn2(AsO4)(OH)·(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	4 g/cc
Hardness - Mohs	Legrandite - 4.0-5.0  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	yellow, orange
Streak	white

Crystal Properties

Property	Value
Crystal structure	monoclinic - prismatic
Cleavage	imperfect
Tenacity	brittle
Fracture	conchoidal
Luster	vitreous, glassy

Similar Minerals

Dana Number : 42.06.04.01

Class: 42

Group: 42.06

Subgroup: 42.06.04 - strashimirite

Dana Number	Mineral Name	Formula
42.06.04.01	legrandite	Zn2(AsO4)(OH)·(H2O)

Nickel-Strunz Number : 08.DC.10

Group : 08

Subgroup : DC

Nickel-Strunz Number	Mineral Name	Formula
08.DC.10	legrandite	Zn2(AsO4)(OH)·(H2O)

Specimens

Localities

Uses