Mineralogy Database

Avicennite Mineral Data

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General Avicennite Information

Help on Chemical  Formula: Chemical Formula: Tl2O3
Help on Composition: Composition: Molecular Weight = 661.15 gm
   Thallium  92.74 %  Tl  103.63 % Tl2O3
   Oxygen     7.26 %  O
            ______        ______ 
            100.00 %      103.63 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Tl3O3
Help on Environment: Environment: In the weathered zone of a hematite-calcite vein cutting banded marmorized and silicified limestones near a granite-gneiss contact (near Dzhuzumli, Tadzhikistan).
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1958
Help on Locality: Locality: From near the village of Dzhuzumli, Mt. Zirabulaksk region, Bukhara, Tadzhikistan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For the medieval (Persian) scholar and physician, Abu 'Ali al-Husayn ibn 'Abd Allah ibn Sina (Avicenna) (930-1037), who lived in Bukhara, Tadzhikistan.
Help on Name Pronunciation: Name Pronunciation: Avicennite + Pronunciation Say AVICENNITE
Help on Synonym: Synonym: ICSD 26813
  PDF 33-1404

Avicennite Image

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Comments: Grayish black polished crystals on microprobe sample mount.
Location: Thallium Prospect, Little Valley, Tooele County, Utah, USA. Scale: See Image.
© Rruff Database

Avicennite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 10.5468, Z = 10; V = 1,173.17 Den(Calc)= 9.36
Help on Crystal System: Crystal System: Isometric - Diploidal H-M Symbol (2/m 3) Space Group: I a3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.044(1), 1.864(0.38), 2.637(0.37),

Physical Properties of Avicennite

Help on Cleavage: Cleavage: None
Help on Color: Color: Grayish black.
Help on Density: Density: 9.574
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Metallic
Help on Streak: Streak: grayish black

Optical Properties of Avicennite

Help on Optical Data: Optical Data: Isotropic.
  NCalc= 1.51 - from Gladstone-Dale relationship (KC = 0.0549) where Ncalc=Dcalc*KC+1
NCalc= 1.53 - from Gladstone-Dale relationship (KC = 0.0549) where Ncalc=Dmeas*KC+1
Help on RL Color: RL Color: Pale to medium gray.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Avicennite in Air
λ R  ∑ R(λ) 
 400 nm   11.50   
 470 nm   12.50 
 500 nm   13.00 
 546 nm   12.70 
 589 nm   12.30 
 650 nm   10.60 
 700 nm   11.50 
Calculated Relative Intensity Colors of Avicennite in Air
   0%   80% 100% 160% 240% 320% 400% 480% 560% 640% 720% 760%

Calculated Properties of Avicennite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=7.56 gm/cc
note: Specific Gravity of Avicennite =9.36 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0000348472
Boson Index = 0.9999651528
Help on Photoelectric: Photoelectric: PEAvicennite =1,688.85 barns/electron
U=PEAvicennite x rElectron Density=12767.61 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Avicennite is Not Radioactive

Avicennite Classification

Help on  Dana Class: Dana Class: (04)Simple Oxides
  (04.03)with a cation charge of 3+ (A+++2 O3)
  (04.03.08)Dana Group Avicennite Tl2O3 I a3 2/m 3
Help on  Strunz Class: Strunz Class: 04.CB.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.C - Metal:Oxygen = 2:3, 3:5, and Similar
  04.CB -With medium-sized cations
04.CB.10 Bixbyite (Mn,Fe)2O3 I a3 2/m 3
04.CB.10 Avicennite Tl2O3 I a3 2/m 3

Other Avicennite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Avicennite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 04.CB.10





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