Fourmarierite

Overview

Pb(UO2)4O3(OH)4·4(H2O)
Fluorescence: none	Very Strongly Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	5.74-6.05 g/cc
Hardness - Mohs	Fourmarierite - 3.0-4.0  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	brown, red, orange, brown
Streak	orange

Crystal Properties

Property	Value
Crystal structure	orthorhombic - pyramidal
Cleavage	perfect
Tenacity	-
Fracture	-
Luster	adamantine

Similar Minerals

Dana Number : 05.09.02.01

Class: 05

Group: 05.09

Subgroup: 05.09.02 - fourmarierite

Dana Number	Mineral Name	Formula
05.09.02.01	fourmarierite	Pb(UO2)4O3(OH)4·4(H2O)

Nickel-Strunz Number : 04.GB.25

Group : 04

Subgroup : GB

Nickel-Strunz Number	Mineral Name	Formula
04.GB.25	fourmarierite	Pb(UO2)4O3(OH)4·4(H2O)

Specimens

Localities

Uses