Avicennite

Overview

Tl2O3
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	9.574 g/cc
Hardness - Mohs	Avicennite - 2  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	gray-black
Streak	gray black

Crystal Properties

Property	Value
Crystal structure	isometric - diploidal
Cleavage	none
Tenacity	brittle
Fracture	conchoidal
Luster	metallic

Similar Minerals

Dana Number : 04.03.08.01

Class: 04

Group: 04.03

Subgroup: 04.03.08 - avicennite

Dana Number	Mineral Name	Formula
04.03.08.01	avicennite	Tl2O3

Nickel-Strunz Number : 04.CB.10

Group : 04

Subgroup : CB

Nickel-Strunz Number	Mineral Name	Formula
04.CB.10	avicennite	Tl2O3
04.CB.10	bixbyite	(Mn+3,Fe+3)2O3

Specimens

Localities

Uses