Mineralogy Database

Lithiotantite Mineral Data

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General Lithiotantite Information

Help on Chemical  Formula: Chemical Formula: Li(Ta,Nb)3O8
Help on Composition: Composition: Molecular Weight = 611.75 gm
   Lithium    1.13 %  Li    2.44 % Li2O
   Tantalum  66.55 %  Ta   81.26 % Ta2O5
   Niobium   11.39 %  Nb   16.29 % Nb2O5
   Oxygen    20.92 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: LiTa2.25Nb0.75O8
Help on Environment: Environment: In microcline-albite zones of granite pegmatites.
Help on IMA Status: IMA Status: Approved IMA 1983
Help on Locality: Locality: Undisclosed locality [Kalba Mountians] in eastern Kazakhstan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for LITHIum and TANTalum in the composition.
Help on Name Pronunciation: Name Pronunciation: Lithiotantite + Pronunciation Say LITHIOTANTITE

Lithiotantite Image

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Comments: White lithotantite crystals.
Location: Ognevka Deposit, Kalbinskii Range, Kazakhstan. Scale: Specimen Size 3x2 mm.
© Sonke Stolze / Systematic Minerals

Lithiotantite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.4758:1:3.0243
Help on Cell Dimensions: Cell Dimensions: a = 7.444, b = 5.044, c = 15.255, Z = 4; beta = 107.18° V = 547.23 Den(Calc)= 7.42
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.96(1), 1.45(0.8), 1.722(0.8),

Physical Properties of Lithiotantite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless, Pink.
Help on Density: Density: 7
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.
Help on Hardness: Hardness: 6-6.5 - Orthoclase-Pyrite
Help on Luster: Luster: Adamantine
Help on Streak: Streak: white

Optical Properties of Lithiotantite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.261 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.302 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1213,KPDmeas= 0.1286,KC= 0.1739
Ncalc = 2.22 - 2.29
Help on Optical Data: Optical Data: Biaxial (?), a=1.9
Help on RL Anisotrophism: RL Anisotrophism: Weak.
Help on RL Color: RL Color: Creamy pink to brownish pink next to cassiterite; grayish white otherwise.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Lithiotantite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 486 nm   18.60   18.50 
 553 nm   18.50   18.30 
 589 nm   18.60   18.30 
 656 nm   19.10   19.00 
Calculated Relative Intensity Colors of Lithiotantite in Air
   0%   50% 100% 150% 200% 250% 300% 350% 400% 450% 480%

Calculated Properties of Lithiotantite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.00 gm/cc
note: Specific Gravity of Lithiotantite =7.00 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0010312544
Boson Index = 0.9989687456
Help on Photoelectric: Photoelectric: PELithiotantite = 818.91 barns/electron
U=PELithiotantite x rElectron Density=4,910.13 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Lithiotantite is Not Radioactive

Lithiotantite Classification

Help on  Dana Class: Dana Class: (08)Multiple Oxides with Nb, Ta, and Ti
  (08.07)Dana Type
  (08.07.07)Dana Group Lithiotantite Li(Ta,Nb)3O8 P 21/c 2/m
Help on  Strunz Class: Strunz Class: 04.DB.40 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DB -With medium-sized cations; chains of edge-sharing octahedra
04.DB.40 Ferrowodginite FeSnTa2O8 C 2/c 2/m
04.DB.40 Lithiotantite Li(Ta,Nb)3O8 P 21/c 2/m
04.DB.40 Lithiowodginite LiTa3O8 C 2/c 2/m
04.DB.40 Tantalowodginite* (Mn2,[])4Ta4Ta8O32 C 2/c 2/m
04.DB.40 Titanowodginite (Mn,Fe)(Ti,Sn)(Ta,Nb)2O8 C 2/c 2/m
04.DB.40 Wodginite Mn(Sn,Ta)(Ta,Nb)2O8 C 2/c 2/m
04.DB.40 Ferrotitanowodginite! FeTiTa2O8 C 2/m 2/m

Other Lithiotantite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Lithiotantite :
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.DB.40





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