Berdesinskiite Mineral Data + Say BERDESINSKIITE

General Berdesinskiite Information
Help on Chemical Formula: Chemical Formula: V+++2TiO5
Help on Composition: Composition: Molecular Weight = 229.76 gm
   Titanium  20.84 %  Ti   34.77 % TiO2
   Vanadium  44.34 %  V    65.23 % V2O3
   Oxygen    34.82 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: V3+2TiO5
Help on Environment: Environment: Weathered gneiss with kornerupine, schreyerite and tourmaline.
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: Lasamba Hill, Kwale district, Voi, Kenya. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Waldemar Berdesinski (1911-1990), German mineralogist, University of Heidelberg.
 

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Berdesinskiite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.9885:1:1.3827
Help on Cell Dimensions: Cell Dimensions: a = 10.11, b = 5.084, c = 7.03, Z = 4; beta = 111.46° V = 336.29 Den(Calc)= 4.54
Help on Crystal System: Crystal System: MonoclinicSpace Group: P 2/c or Pc
 

Physical Properties of Berdesinskiite

Help on Color: Color: Black, Reddish brown.
Help on Diaphaniety: Diaphaniety: Opaque
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 6-6.5 - Orthoclase-Pyrite
Help on Luster: Luster: Metallic
Help on Streak: Streak: black
 

Optical Properties of Berdesinskiite

Help on Optical Data: Optical Data: Biaxial (?)
  NCalc= 2.45 - from Gladstone-Dale relationship (KC = 0.3186) where Ncalc=Dcalc*KC+1
Help on RL Bireflectance: RL Bireflectance: Weak.
Help on RL Color: RL Color: Reddish brown.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Berdesinskiite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   16.60   17.10 
   
 420 nm   17.10   17.50 
 440 nm   17.40   18.00 
 460 nm   17.90   18.40 
 480 nm   18.30   18.90 
 500 nm   18.80   19.40 
 520 nm   19.20   19.80 
 540 nm   19.50   20.30 
 560 nm   19.80   20.80 
 580 nm   20.00   21.10 
 600 nm   20.30   21.30 
 620 nm   20.40   21.40 
 640 nm   20.50   21.50 
 660 nm   20.60   21.60 
 680 nm   20.40   21.60 
 700 nm   20.20   21.50 
Calculated Relative Intensity Colors of Berdesinskiite in Air
Relative
Intensity		    0%   50% 100% 150% 200% 250% 300% 350% 400% 450% 500%
R1                      
R2                      
 

Calculated Properties of Berdesinskiite

Help on Electron Density: Electron Density:

relectron=4.27 gm/cc
note: rBerdesinskiite =4.54 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.02822
Boson Index = 0.97178
Help on Photoelectric: Photoelectric:

PEBerdesinskiite = 12.13 barns/electron
U=PEBerdesinskiite x relectron= 51.78 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Berdesinskiite is Not Radioactive
 

Berdesinskiite Classification
Help on Dana Class: Dana Class: 7.7.2.1 (7)Multiple Oxides
  (7.7)with miscellaneous formulae
  (7.7.2)Dana Group
 
7.7.2.1 Berdesinskiite V2TiO5 P 2/c or Pc Mono
Help on Strunz Class: Strunz Class: IV/C.26-10 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 Berdesinskiite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Berdesinskiite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 -École des Mines de Paris

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Berdesinskiite

V+++2TiO5
Dana No: 7.7.2.1 Strunz No: IV/C.26-10
Locality:

 

Notes:

 
 
   
 
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