Baotite Mineral Data + Say BAOTITE

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 Synonym: Synonym: ICSD 27759
  PDF 39-390
 

Baotite Image

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Baotite   Ferrocolumbite

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

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 - DipyramidalH-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),
Click Here for Large Baotite Structure Window Crystal Structure:

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Nekrasov Yu V , Ponomarev V I , Simonov V I , Kheiker D M , Soviet Physics - Crystallography , 14 (1969) p.508-514, Refinement of the atomic structure of baotite, and the isomorphic relationships in this mineral

 

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 Diaphaniety: Diaphaniety: 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
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:

relectron=3.98 gm/cc
note: rBaotite =4.37 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.08843
Boson Index = 0.91157
Help on Photoelectric: Photoelectric:

PEBaotite = 169.88 barns/electron
U=PEBaotite x relectron= 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: 60.1.2.1 (60)Cyclosilicate Four-Membered Rings
  (60.1)as Titanosilicates
  (60.1.2)Dana Group
 
60.1.2.1 Baotite Ba4(Ti,Nb)8Si4O28Cl I 41/a 4/m
Help on Strunz Class: Strunz Class: VIII/E.08-10 VIII - Silicates
  VIII/E - Cyklosilicates, quadruplet rings [Si4O11]8-
  VIII/E.08 - Joaquinite group, Baotite - Orthojoaquinite-(Ce) series
 
VIII/E.08-05 Verplanckite Ba2(Mn,Ti,Fe)2Si2O6(O,OH,Cl,F)2·3(H2O) P 6/mmm 6/m 2/m 2/m
 
VIII/E.08-10 Baotite Ba4(Ti,Nb)8Si4O28Cl I 41/a 4/m
 
VIII/E.08-15 Cerchiaraite! Ba4(Mn,Fe,Al)4Si6(O,OH,Cl)26 I 4/mmm 4/m 2/m 2/m
 
VIII/E.08-20 Titantaramellite Ba4(Ti,Fe,Fe,Mg)4(B2Si8O27)O2ClxX=0TO1,withTi>Fe Pmmn 2/m 2/m 2/m
 
VIII/E.08-30 Taramellite Ba4(Fe,Ti,Fe,Mg)4(B2Si8O27)O2Clx(x=0to1) Pmmn 2/m 2/m 2/m
 
VIII/E.08-40 Nagashimalite Ba4(V,Ti)4Si8B2O27Cl(O,OH)2 Pmmn 2/m 2/m 2/m
 
VIII/E.08-50 Strontiojoaquinite (Na,Fe)2Ba2Sr2Ti2[Si4O12]2(O,OH)2·(H2O) C 2 2
 
VIII/E.08-60 Strontio-orthojoaquinite (Na,Fe)2Ba2Sr2Ti2[Si4O12]2(O,OH)2·(H2O) Pbcm or Pbc2 Ortho
 
VIII/E.08-70 Bario-orthojoaquinite Fe2(Ba,Sr)4Ti2[Si4O12]O2·(H2O) Ccmm or Ccm2 Ortho
 
VIII/E.08-80 Joaquinite-(Ce) NaFeBa2Ce2(Ti,Nb)2[Si4O12]2O2(OH,F)·(H2O) C 2 2
 
VIII/E.08-89 Orthojoaquinite-(La)! Ba2Na(La,Ce)2FeTi2Si8O26(OH,O,F)·H2O Ccmm 2/m 2/m 2/m
 
VIII/E.08-90 Orthojoaquinite-(Ce) NaFeBa2Ce2Ti2[Si4O12]2O2(OH)·(H2O) Ccmm or Ccm21 Ortho
 

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 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (MinSocAm) 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris

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Baotite

Ba4(Ti,Nb)8Si4O28Cl
Dana No: 60.1.2.1 Strunz No: VIII/E.08-10
Locality:

 

Notes:

 
 
   
 
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