Bussenite  Mineral Data

Bussenite Mineral Data

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General Bussenite Information

Help on Chemical  Formula: Chemical Formula: Na2(Ba,Sr)2(Fe,Mn)TiSi2O7(CO3)(OH)3F
Help on Composition: Composition: Molecular Weight = 657.06 gm
   Barium     26.13 %  Ba   29.17 % BaO
   Sodium      6.65 %  Na    8.96 % Na2O
   Strontium   5.33 %  Sr    6.31 % SrO
   Calcium     1.22 %  Ca    1.71 % CaO
   Titanium    7.29 %  Ti   12.16 % TiO2
   Manganese   3.34 %  Mn    4.32 % MnO
   Iron        5.10 %  Fe    6.56 % FeO
   Silicon     8.55 %  Si   18.29 % SiO2
   Hydrogen    0.44 %  H     3.98 % H2O
   Carbon      1.65 %  C     6.03 % CO2
   Oxygen     31.41 %  O
   Fluorine    2.89 %  F     2.89 % F
                -   %   F    -1.22 % -O=F2    
             ______        ______ 
             100.00 %       99.15 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na1.9Ba1.25Sr0.4Ca0.2Fe2+0.6Mn2+0.4TiSi2O7.3(CO3)0.9(OH)2.9F
Help on Environment: Environment: Sodalite-matrolite-calcite veinlet that cuts urtite.
Help on IMA Status: IMA Status: Approved IMA 2001 (Dana # Added)
Help on Locality: Locality: Mount Kukisvumchorr, Khibiny alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Irina V. Bussen (1915-), Russian petrologist.
Help on Synonym: Synonym: IMA2000-035
 

Bussenite Image

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Bussenite

Comments: Crystal fragment of bussenite on sticky tape.
Location: Kukisvumchorr Mt., Khibiny Massif, Kola Peninsula, Russia. Scale: Crystal size 2 mm.
© Sergey Vasiliev / Systematic Mineralogy

Bussenite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7695:1:2.3195
Help on Cell Dimensions: Cell Dimensions: a = 5.419, b = 7.042, c = 16.334, Z = 2; alpha = 102.45°, beta = 93.2°, gamma = 90° V = 607.71 Den(Calc)= 3.59
Help on Crystal System: Crystal System: Triclinic - PedialH-M Symbol (1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.186(1)(113,114), 2.738(0.62)(123,121), 3.91(0.44)(112,103), 3.055(0.38)(114,113), 2.613(0.32)(122,124), 2.695(0.32
Click Here for Large Bussenite Structure Window Crystal Structure:

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Zhou H , Rastsvetaeva R K , Khomyakov A P , Ma Z , Shi N , Crystallography Reports , 47 (2002) p.43-46, Crystal structure of new micalike titanosilicate - bussenite,, Na2Ba2Fe2+[TiSi2O7][CO3]O(OH)(H2O)F, Locality: Khibiny alkaline massif, Kola Peninsula, Russia

 

Physical Properties of Bussenite

Help on Cleavage: Cleavage: {001} Perfect, {110} Distinct, {110} Distinct
Help on Color: Color: Yellowish brown.
Help on Density: Density: 3.63
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white
 

Optical Properties of Bussenite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.043 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.032 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1949,KPDmeas= 0.1927,KC= 0.2013
Ncalc = 1.72 - 1.73
Help on Optical Data: Optical Data: Biaxial (+), a=1.671, b=1.694, g=1.734, bire=0.0630, 2V(Calc)=76, 2V(Meas)=71. Dispersion strong, r > v.
 

Calculated Properties of Bussenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.35 gm/cc
note: Specific Gravity of Bussenite =3.59 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.06
Boson Index = 0.94
Help on Photoelectric: Photoelectric: PEBussenite = 122.79 barns/electron
U=PEBussenite x rElectron Density= 410.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bussenite is Not Radioactive
 

Bussenite Classification

Help on  Dana Class: Dana Class: 56.05.01.01 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.05)Dana Type
  (56.05.01)Dana Group
 
56.05.01.01 Bussenite! Na2(Ba,Sr)2(Fe,Mn)TiSi2O7(CO3)(OH)3F P1 1
Help on  Strunz Class: Strunz Class: 09.BE.65 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BE -Si2O7 groups with additional anions;
 
09.BE.65 Bussenite! Na2(Ba,Sr)2(Fe,Mn)TiSi2O7(CO3)(OH)3F P1 1
 

Other Bussenite Information

Help on References: References: NAME( AmMin, Vol 87, p 1509) PHYS. PROP.(AmMin, Vol 87, p 1509) OPTIC PROP.(AmMin, Vol 87, p 1509)
Help on See Also: See Also: Links to other databases for Bussenite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Bussenite Specimen Label here :

Bussenite

Na2(Ba,Sr)2(Fe,Mn)TiSi2O7(CO3)(OH)3F
Dana No: 56.05.01.01 Strunz No: 09.BE.65
Locality:

 

Notes: