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Avicennite

Avicennite
General
Category Mineral
Formula
(repeating unit)
Tl2O3
Strunz classification 4.CB.10
Dana classification 04.03.08.01
Crystal system Cubic
Crystal class Diploidal (m3)
H-M symbol: (2/m 3)
Space group Ia3
Identification
Color Grayish black with brownish black tint
Mohs scale hardness 1,5 to 2,5
Density 8.9

Avicennite (thallium(III) oxide) is an oxide mineral. It was discovered around the Dzhuzumli village, Samarqand, Uzbekistan. It is named after Avicenna, a Persian doctor and polymath.


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Wikipedia

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