Winstanleyite Mineral Data + Say WINSTANLEYITE

General Winstanleyite Information

Help on Chemical  Formula: Chemical Formula: TiTe++++3O8
Help on Composition: Composition: Molecular Weight = 558.68 gm
   Titanium    8.57 %  Ti   14.30 % TiO2
   Tellurium  68.52 %  Te   85.70 % TeO2
   Oxygen     22.91 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: TiTe3O8
Help on Environment: Environment: Found in a silicified granodiorite dike associated with jarosite, chlorargyrite, and rodalquilarite.
Help on IMA Status: IMA Status: Approved IMA 1979
Help on Locality: Locality: Grand Central mine, Tumbstone, Arizona. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Betty Jo Winstanley (1934-), amateur mineralogist, who found the first specimen.
Help on Synonym: Synonym: ICSD 9076
  PDF 34-1485
 

Winstanleyite Image

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Winstanleyite   Jarosite

Comments: Small, yellow octahedral crystal of winstanleyite on brownish red jarosite.
Location: Tombstone, Tombstone District, Cochise Co., Arizona, USA. Scale: Picture size 0.9 mm.
© Thomas Witzke / Abraxas-Verlag

Winstanleyite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 10.963, Z = 8; V = 1,317.61 Den(Calc)= 5.63
Help on Crystal System: Crystal System: Isometric - DiploidalH-M Symbol (2/m 3) Space Group: I 21/a3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.165(1), 1.938(0.8), 2.741(0.7),
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Bindi L , Cipriani C , The Canadian , Mineralogist (2003) p.1469-1473, The crystal structure of winstanleyite, TiTe3O8, from the, Grand Central Mine, Tombstone, Arizona, Locality: Grand Central Mine, Tombstone, Arizona

 

Physical Properties of Winstanleyite

Help on Cleavage: Cleavage: None
Help on Color: Color: Yellow, Light brown.
Help on Density: Density: 5.57
Help on Diaphaniety: Diaphaniety: Transparent
Help on Fracture: Fracture: Tough - Difficult to break apart as shown by fibrous minerals and most metals.
Help on Habit: Habit: Cubic Crystals - Occurs as cubic shaped crystals.
Help on Habit: Habit: Octahedral Crystals - Occurs as octahedral shaped crystals.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Adamantine
Help on Streak: Streak: light yellow
 

Optical Properties of Winstanleyite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.053 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.042 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.238,KPDmeas= 0.2406,KC= 0.2285
Help on Optical Data: Optical Data: Isotropic, n=2.34.
 

Calculated Properties of Winstanleyite

Help on Electron Density: Electron Density:

relectron=4.88 gm/cc
note: rWinstanleyite =5.63 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.06593
Boson Index = 0.93407
Help on Photoelectric: Photoelectric:

PEWinstanleyite = 244.25 barns/electron
U=PEWinstanleyite x relectron=1,191.31 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Winstanleyite is Not Radioactive

 

Winstanleyite Classification

Help on  Dana Class: Dana Class: 34.5.2.1 (34)Selenites - Tellurites - Sulfites
  (34.5)Dana Type
  (34.5.2)Dana Group
 
34.5.2.1 Winstanleyite TiTe3O8 I 21/a3 2/m 3
 
34.5.2.2 Walfordite! (Fe,Te)Te3O8 I2, I a3 Cubic
Help on  Strunz Class: Strunz Class: IV/K.14-10 IV - Oxides
  IV/K - Tellurides with [Te3O8]4- groups
  IV/K.14 - Winstanleyite - Cliffordite series
 
IV/K.14-05 Walfordite! (Fe,Te)Te3O8 I2, I a3 Cubic
 
IV/K.14-10 Winstanleyite TiTe3O8 I 21/a3 2/m 3
 
IV/K.14-20 Cliffordite UTe3O9 P a3 2/m 3
 

Other Winstanleyite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Winstanleyite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Winstanleyite

TiTe++++3O8
Dana No: 34.5.2.1 Strunz No: IV/K.14-10
Locality:

 

Notes:

 

 
   
 
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