Mineralogy Database

Tellurite Mineral Data

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General Tellurite Information

Help on Chemical  Formula: Chemical Formula: TeO2
Help on Composition: Composition: Molecular Weight = 159.60 gm
   Tellurium  79.95 %  Te  100.00 % TeO2
   Oxygen     20.05 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: TeO2
Help on Environment: Environment: Of secondary origin resulting from the oxidation of other tellurium compounds.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1849
Help on Locality: Locality: Nagy-Ag, Rumania. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its containing tellurium (Latin, tellus = "earth").
Help on Name Pronunciation: Name Pronunciation: Tellurite + Pronunciation Say TELLURITE
Help on Synonym: Synonym: ICSD 26844
  PDF 9-433

Tellurite Image

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  Denningite   Tellurite

Comments: Vitreous colorless to very pale yellowish elongated crystals denningite with yellow tellurite.
Location: Bambolla Mine, Moctezuma, Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

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Comments: Scaly yellow tellurite on white quartz.
Location: Mina Bambollita, Moctezuma, Sonora, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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Comments: Prismatic, reddish brown tellurite crystal clusters to 5-6mm in a vug,lined with drusy quartz.
Location: Bambolla Mine, Moctezuma, Sonora, Mexico. Scale: Picture Size 2 cm.
© Rob Lavinsky

Tellurite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.4659:1:0.4539
Help on Cell Dimensions: Cell Dimensions: a = 5.607, b = 12.034, c = 5.463, Z = 8; V = 368.61 Den(Calc)= 5.75
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P bca
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.28(1), 3.723(0.95), 3.008(0.5),
Help on Forms: Forms:

Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 0 1 0) ( 1 1 1) ( 1 2 0)

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Physical Properties of Tellurite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Yellow orange, White, Straw yellow.
Help on Density: Density: 5.9
Help on Diaphaneity: Diaphaneity: Subtranslucent to opaque
Help on Fracture: Fracture: Flexible - Flexible fragments.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 2 - Gypsum
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Adamantine
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: white

Optical Properties of Tellurite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.018 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2046,KPDmeas= 0.1994,KC= 0.201
Ncalc = 2.16 - 2.19
Help on Optical Data: Optical Data: Biaxial (-), a=2, b=2.18, g=2.35, bire=0.3500

Calculated Properties of Tellurite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.03 gm/cc
note: Specific Gravity of Tellurite =5.90 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.06
Boson Index = 0.94
Help on Photoelectric: Photoelectric: PETellurite = 287.88 barns/electron
U=PETellurite x rElectron Density=1,447.32 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tellurite is Not Radioactive

Tellurite Classification

Help on  Dana Class: Dana Class: (04)Simple Oxides
  (04.04)with a cation charge of 4+ (A++++ O2)
  (04.04.06)Dana Group Tellurite TeO2 P bca 2/m 2/m 2/m Scrutinyite PbO2 P bcn 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 04.DE.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DE -With medium-sized cations; with various polyhedra
04.DE.20 Tellurite TeO2 P bca 2/m 2/m 2/m

Other Tellurite Information

Help on References: References: NAME( Emsley91) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Tellurite :
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.DE.20





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