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Labuntsovite-Fe Mineral Data

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General Labuntsovite-Fe Information

Help on Chemical  Formula: Chemical Formula: Na4K4(Ba,K)2(Fe,Mg,Mn)1+xTi8(Si4O12)4(O,OH)8•10(H2O)
Help on Composition: Composition: Molecular Weight = 2,418.89 gm
   Potassium   6.95 %  K     8.37 % K2O
   Barium      7.38 %  Ba    8.24 % BaO
   Sodium      4.09 %  Na    5.51 % Na2O
   Magnesium   0.20 %  Mg    0.33 % MgO
   Titanium   15.44 %  Ti   25.76 % TiO2
   Manganese   0.23 %  Mn    0.29 % MnO
   Niobium     0.77 %  Nb    1.10 % Nb2O5
   Iron        1.85 %  Fe    2.38 % FeO
   Silicon    18.58 %  Si   39.74 % SiO2
   Hydrogen    0.93 %  H     8.34 % H2O
   Oxygen     43.59 %  O
             ______        ______ 
             100.00 %      100.07 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na4.3K4.3Ba1.3(H2O)2.2Fe2+0.8Mg0.2Mn2+0.1Ti7.8Nb0.2Si16O53.4(OH)2.6�7.7(H2O)
Help on Environment: Environment: Occurs in K-feldspar-natrolite-calcite veinlets in hydrothermally altered urtite. Labuntsovite group, structure
Help on IMA Status: IMA Status: Approved IMA 2002 (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 as the Fe dominant member of the labuntsovite subgroup.
Help on Name Pronunciation: Name Pronunciation: Labuntsovite-Fe + Pronunciation Say LABUNTSOVITE-FE
Help on Synonym: Synonym: IMA1998-051

Labuntsovite-Fe Image

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Comments: Orange labuntsovite-Fe in matrix.
Location: Desourdy Quarry, Mont St. Hilaire, Rouville County, Quebec, Canad. Scale: See Image.
© Rruff Database

Labuntsovite-Fe Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0332:1:0.5639
Help on Cell Dimensions: Cell Dimensions: a = 14.249, b = 13.791, c = 7.777, Z = 1; beta = 116.82° V = 1,363.85 Den(Calc)= 2.94
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.169(1)(400,402,421), 2.585(0.58)(241,242), 6.95(0.56)(001),3.032(0.53)(240,241), 3.1(0.53)(022,041), 6.35(0.34),

Physical Properties of Labuntsovite-Fe

Help on Color: Color: Orange.
Help on Density: Density: 2.94
Help on Diaphaneity: Diaphaneity: Translucent to transparent
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)

Optical Properties of Labuntsovite-Fe

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.027 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.027 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2514,KPDmeas= 0.2514,KC= 0.2583
Ncalc = 1.76
Help on Optical Data: Optical Data: Biaxial (+), a=1.686, b=1.696, g=1.835, bire=0.1490

Calculated Properties of Labuntsovite-Fe

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.87 gm/cc
note: Specific Gravity of Labuntsovite-Fe =2.94 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PELabuntsovite-Fe = 36.07 barns/electron
U=PELabuntsovite-Fe x relectron= 103.53 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 97.92 (Gamma Ray American Petroleum Institute Units)
Concentration of Labuntsovite-Fe per GRapi unit = 1.02 (%)

Estimated Radioactivity from Labuntsovite-Fe - barely detectable


Labuntsovite-Fe Classification

Help on  Dana Class: Dana Class: 60.01.03e.03 (60)Cyclosilicate Four-Membered Rings
  (60.01)as Titanosilicates
  (60.01.03e)Labuntsovite Group (Labuntsovite subgroup Monoclinic [C2/m])
60.01.03e.01 Labuntsovite-Mn! Na4K4(Ba,K)(Mn,Fe)1x(Ti,Nb)8[Si4O12]4(O,OH)8•n(H2O),n=10-12 I2/m 2/m
60.01.03e.02 Labuntsovite-Mg! Na4K4(Ba,K)(Mg,Fe)1xTi8(Si4O12)4(O,OH)8•10(H2O) C 2/m 2/m
60.01.03e.03 Labuntsovite-Fe! Na4K4(Ba,K)2(Fe,Mg,Mn)1xTi8(Si4O12)4(O,OH)8•10(H2O) C 2/m 2/m
60.01.03e.04 Paratsepinite-Na! (Na,Sr,K,Ca)7(Ti,Nb)8[Si4O12]4(O,OH)8•n(H2O)n~8 C 2/m 2/m
60.01.03e.05 Gjerdingenite-Mn! (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O) C 2/m 2/m
60.01.03e.06 Gjerdingenite-Fe! K2[(H2O)2(Fe,Mn)][(Nb,Ti)4(Si4O12)2(O,OH)4]•4(H2O) C 2/m 2/m
60.01.03e.07 Gjerdingenite-Ca! K2Ca(Nb,Ti)4(Si4O12)2(O,OH)4•6H2O C 2/m 2/m
60.01.03e.08 Gjerdingenite-Na! (K,Na)2Na(Nb,Ti)4(Si4O12)2(OH,O)4•5H2O C 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.CE.30e 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe),
09.CE.30e Labuntsovite-Mn Na4K4(Ba,K)(Mn,Fe)1x(Ti,Nb)8[Si4O12]4(O,OH)8•n(H2O),n=10-12 I2/m 2/m
09.CE.30e Labuntsovite-Mg! Na4K4(Ba,K)(Mg,Fe)1xTi8(Si4O12)4(O,OH)8•10(H2O) C 2/m 2/m
09.CE.30e Labuntsovite-Fe! Na4K4(Ba,K)2(Fe,Mg,Mn)1xTi8(Si4O12)4(O,OH)8•10(H2O) C 2/m 2/m

Other Labuntsovite-Fe Information

Help on References: References: NAME( AmMin, v 87, p 1733) PHYS. PROP.(AmMin, v 87, p 1733) OPTIC PROP.(AmMin, v 87, p 1733)
Help on See Also: See Also: Links to other databases for Labuntsovite-Fe :
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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Dana No: 60.01.03e.03 Strunz No: 09.CE.30e





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