Avicennite
| Avicennite | |
|---|---|
| General | |
| Category | Minerals | 
| Formula | 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 | 2 | 
| 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.