Mineralogy Database

Lenoblite Mineral Data

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General Lenoblite Information

Help on Chemical  Formula: Chemical Formula: V2O4•2(H2O)
Help on Composition: Composition: Molecular Weight = 201.91 gm
   Vanadium  50.46 %  V    82.16 % VO2
   Hydrogen   2.00 %  H    17.84 % H2O
   Oxygen    47.54 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: V4+2O4•2(H2O)
Help on Environment: Environment: From a uranium deposit associated with duttonite.
Help on IMA Status: IMA Status: Approved IMA 1970
Help on Locality: Locality: Mine Oklo, Mounana (near Franceville), Gabon. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Andre Lenoble, French mineralogist-geologist.
Help on Name Pronunciation: Name Pronunciation: Lenoblite + Pronunciation Say LENOBLITE

Lenoblite Image

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Comments: Yellow coating of lenoblite on uraninite.
Location: Mounana, Haut-Ogooue, Gabon. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Lenoblite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6213:1:3.0705
Help on Cell Dimensions: Cell Dimensions: a = 2.995, b = 4.82, c = 14.8, Z = 2; V = 213.65 Den(Calc)= 3.14
Help on Crystal System: Crystal System: Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 212121
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.59(1), 3.722(0.9), 2.528(0.8),

Physical Properties of Lenoblite

Help on Color: Color: Azure, Greenish blue.

Optical Properties of Lenoblite

Help on Optical Data: Optical Data: NCalc= 2.2 - from Gladstone-Dale relationship (KC = 0.3835) where Ncalc=Dcalc*KC+1

Calculated Properties of Lenoblite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.05 gm/cc
note: Specific Gravity of Lenoblite =3.14 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0014926888
Boson Index = 0.9985073112
Help on Photoelectric: Photoelectric: PELenoblite = 9.59 barns/electron
U=PELenoblite x rElectron Density= 29.22 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Lenoblite is Not Radioactive

Lenoblite Classification

Help on  Dana Class: Dana Class: (04)Simple Oxides
  (04.04)with a cation charge of 4+ (A++++ O2)
  (04.04.17)Dana Group Lenoblite V2O4•2(H2O) P 212121 2 2 2
Help on  Strunz Class: Strunz Class: 04.HG.60 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.H - V[5,6] Vanadates
  04.HG -Unclassified V oxides
04.HG.60 Lenoblite V2O4•2(H2O) P 212121 2 2 2

Other Lenoblite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Lenoblite :
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.HG.60





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