Kyzylkumite Mineral Data + Say KYZYLKUMITE

General Kyzylkumite Information
Help on Chemical Formula: Chemical Formula: V+++2Ti3O9
Help on Composition: Composition: Molecular Weight = 389.52 gm
   Titanium  36.88 %  Ti   61.52 % TiO2
   Vanadium  26.16 %  V    38.48 % V2O3
   Oxygen    36.97 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: V3+2Ti3O9
Help on Environment: Environment: Silliceous schists with chlorite, pyrite, and rutile.
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: Kyzul-Kum, Uzbekistan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
 

Kyzylkumite Image

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Kyzylkumite

Comments: A small crystal of kyzylkumite with a triangular face.
Location: Koscheka U Deposit, Auminzatau Mtns., Central Kyzylkum Region, Kyzylkum Desert, Uzbekistan. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Kyzylkumite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =7.3831:1:4.3665
Help on Cell Dimensions: Cell Dimensions: a = 33.8, b = 4.578, c = 19.99, Z = 18; beta = 93.4° V = 3,087.74 Den(Calc)= 3.77
Help on Crystal System: Crystal System: MonoclinicSpace Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.92(1), 3.7(0.8), 1.682(0.65),
 

Physical Properties of Kyzylkumite

Help on Color: Color: Black.
Help on Density: Density: 3.75
Help on Diaphaniety: Diaphaniety: Opaque
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 6-6.5 - Orthoclase-Pyrite
Help on Luster: Luster: Vitreous - Resinous
 

Optical Properties of Kyzylkumite

Help on Optical Data: Optical Data: Biaxial (?)
  NCalc= 2.32 - from Gladstone-Dale relationship (KC = 0.3491) where Ncalc=Dcalc*KC+1
NCalc= 2.31 - from Gladstone-Dale relationship (KC = 0.3491) where Ncalc=Dmeas*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Distinct.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Kyzylkumite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 440 nm   14.70   15.80 
   
 460 nm   14.60   15.70 
 480 nm   14.50   15.70 
 500 nm   14.50   15.80 
 520 nm   14.60   15.80 
 540 nm   14.70   16.00 
 560 nm   14.80   16.20 
 580 nm   14.80   16.20 
 600 nm   15.00   16.30 
 620 nm   15.10   16.40 
 640 nm   15.20   16.50 
 660 nm   15.20   16.50 
Calculated Relative Intensity Colors of Kyzylkumite in Air
Relative
Intensity		    0%   70% 100% 140% 210% 280% 350% 420% 490% 560% 610%
R1                      
R2                      
 

Calculated Properties of Kyzylkumite

Help on Electron Density: Electron Density:

relectron=3.56 gm/cc
note: rKyzylkumite =3.77 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.04851
Boson Index = 0.95149
Help on Photoelectric: Photoelectric:

PEKyzylkumite = 11.27 barns/electron
U=PEKyzylkumite x relectron= 40.12 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Kyzylkumite is Not Radioactive
 

Kyzylkumite Classification
Help on Dana Class: Dana Class: 8.4.1.3 (8)Multiple Oxides with Nb, Ta, and Ti
  (8.4)with miscellaneous formulae
  (8.4.1)Dana Group
 
8.4.1.1 Schreyerite V2Ti3O9 Unk Mono
 
8.4.1.2 Olkhonskite (Cr,V)2Ti3O9 Unk Mono
 
8.4.1.3 Kyzylkumite V2Ti3O9 Unk Mono
Help on Strunz Class: Strunz Class: IV/C.26-30 IV - Oxides
  IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds)
  IV/C.26 - Berdesinskiite - Stibivanite series
 
IV/C.26-10 Berdesinskiite V2TiO5 P 2/c or Pc Mono
 
IV/C.26-15 Olkhonskite (Cr,V)2Ti3O9 Unk Mono
 
IV/C.26-20 Schreyerite V2Ti3O9 Unk Mono
 
IV/C.26-30 Kyzylkumite V2Ti3O9 Unk Mono
 
IV/C.26-40 Stibivanite Sb2VO5 C 2/c 2/m
 

Other Kyzylkumite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Kyzylkumite :
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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Kyzylkumite

V+++2Ti3O9
Dana No: 8.4.1.3 Strunz No: IV/C.26-30
Locality:

 

Notes:

 
 
   
 
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