Mineralogy Database

Baotite Mineral Data

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General Baotite Information

Help on Chemical  Formula: Chemical Formula: Ba4(Ti,Nb)8Si4O28Cl
Help on Composition: Composition: Molecular Weight = 1,582.82 gm
   Barium    34.70 %  Ba   38.75 % BaO
   Titanium  17.54 %  Ti   29.27 % TiO2
   Niobium    8.22 %  Nb   11.76 % Nb2O5
   Iron       2.12 %  Fe    2.72 % FeO
   Silicon    7.10 %  Si   15.18 % SiO2
   Chlorine   2.02 %  Cl    2.02 % Cl
               -   %   Cl   -0.45 % -O=Cl2   
   Oxygen    28.30 %  O
            ______        ______ 
            100.00 %       99.24 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba4Ti5.8Nb1.4Fe2+0.6Si4O28Cl0.9
Help on Environment: Environment: In quartz veins cutting quartzite near alkalic granite and syenite.
Help on IMA Status: IMA Status: Approved IMA 1959
Help on Locality: Locality: From the Baiyun-Obo mine near Pat-t'ou (Baotou in Russian), Inner Mongolia.. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For the locality.
Help on Name Pronunciation: Name Pronunciation: Baotite Say BAOTITE
Help on Synonym: Synonym: ICSD 27759
  PDF 39-390

Baotite Image

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  Baotite   Columbite-(Fe)

Comments: Minute brown crystalline grains of baotite in dark ferrocolumbite (columbite-(Fe)).
Location: Sheep Creek, Ravalli County, Montana. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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Comments: Brown masses of crystalline baotite in white quartz matrix.
Location: Inner Mongolia, Autonomous Region, China. Scale: Picture size 2 cm.
© Tom Loomis / Dakota Matrix

Baotite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.29999
Help on Cell Dimensions: Cell Dimensions: a = 20.02, c = 6.006, Z = 4; V = 2,407.21 Den(Calc)= 4.37
Help on Crystal System: Crystal System: Tetragonal - Dipyramidal H-M Symbol (4/m) Space Group: I 41/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.3346(1), 2.243(0.9), 3.516(0.9),1.4221(0.25), 3.139(0.1), 1.763(0.095),

Physical Properties of Baotite

Help on Cleavage: Cleavage: {110} Good
Help on Color: Color: Light brown, Black.
Help on Density: Density: 4.42 - 4.72, Average = 4.57
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Hackly - Jagged, torn surfaces, (e.g. fractured metals).
Help on Habit: Habit: Subhedral Crystals - Occurs as crystals which tend to exhibit a recognizable crystal shape.
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luster: Luster: Vitreous (Glassy)

Optical Properties of Baotite

Help on Dichroism (e): Dichroism (e): colorless or colorless.
Help on Dichroism (w): Dichroism (w): dark brownish green or light greenish yellow.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.039 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2403,KPDmeas= 0.2298,KC= 0.2392
Ncalc = 2.05 - 2.13
Help on Optical Data: Optical Data: Uniaxial (+), w=2.16, e=1.94, bire=0.2200.

Calculated Properties of Baotite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.98 gm/cc
note: Specific Gravity of Baotite =4.37 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PEBaotite = 169.88 barns/electron
U=PEBaotite x rElectron Density= 675.28 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Baotite is Not Radioactive

Baotite Classification

Help on  Dana Class: Dana Class: (60)Cyclosilicate Four-Membered Rings
  (60.01)as Titanosilicates
  (60.01.02)Dana Group Baotite Ba4(Ti,Nb)8Si4O28Cl I 41/a 4/m
Help on  Strunz Class: Strunz Class: 09.CE.15 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe),
09.CE.15 Baotite Ba4(Ti,Nb)8Si4O28Cl I 41/a 4/m

Other Baotite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic2)
Help on See Also: See Also: Links to other databases for Baotite :
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: 09.CE.15





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