Threadgoldite

Overview

Al(UO2)2(PO4)2(OH)·8(H2O)
Fluorescence: pale green under SW, green under LW	Very Strongly Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.4 g/cc
Hardness - Mohs	Threadgoldite - 2.0-3.0  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	greenish yellow
Streak	yellow white

Crystal Properties

Property	Value
Crystal structure	monoclinic - prismatic
Cleavage	perfect
Tenacity	-
Fracture	-
Luster	vitreous

Similar Minerals

Dana Number : 42.11.13.03

Class: 42

Group: 42.11

Subgroup: 42.11.13 - vanuralite

Dana Number	Mineral Name	Formula
42.11.13.01	vanuralite	Al(UO2)2(VO4)2(OH)·11(H2O)
42.11.13.03	threadgoldite	Al(UO2)2(PO4)2(OH)·8(H2O)

Nickel-Strunz Number : 08.EB.20

Group : 08

Subgroup : EB

Nickel-Strunz Number	Mineral Name	Formula
08.EB.20	threadgoldite	Al(UO2)2(PO4)2(OH)·8(H2O)

Specimens

Localities

Uses