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Nabalamprophyllite Mineral Data

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General Nabalamprophyllite Information

Help on Chemical  Formula: Chemical Formula: Ba(Na,Ba){Na3Ti[Ti2O2Si4O14](OH,F)2}
Help on Composition: Composition: Molecular Weight = 810.56 gm
   Potassium   0.77 %  K     0.93 % K2O
   Barium     21.86 %  Ba   24.40 % BaO
   Sodium      8.37 %  Na   11.28 % Na2O
   Strontium   0.54 %  Sr    0.64 % SrO
   Calcium     0.25 %  Ca    0.35 % CaO
   Magnesium   0.21 %  Mg    0.35 % MgO
   Titanium   16.84 %  Ti   28.09 % TiO2
   Manganese   0.88 %  Mn    1.14 % MnO
   Aluminum    0.23 %  Al    0.44 % Al2O3
   Iron        0.55 %  Fe    0.71 % FeO
   Silicon    13.58 %  Si   29.06 % SiO2
   Hydrogen    0.21 %  H     1.84 % H2O
   Oxygen     34.52 %  O
   Fluorine    1.20 %  F     1.20 % F
                -   %   F    -0.50 % -O=F2    
             ______        ______ 
             100.00 %       99.91 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba1.29Mn2+0.13Na0.11Sr0.05Ca0.05Na2.84K0.16Ti0.85Fe2+0.08Mg0.07Ti2O2Si3.92Al0.07 O13.83(OH)1.66F0.51
Help on Environment: Environment: Found in a peralkaline pegmatite. (lamprophyllite group; structure).
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Inagli alkaline-ultrabasic massif, Yakutia, Russia. Also in the Kovdor alkaline-ultrabasic massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Na & Ba dominant analogue of lamprophyllite.
Help on Synonym: Synonym: IMA2001-060
 

Nabalamprophyllite Image

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  Nabalamprophyllite

Comments: Yellowish brown platy nabalamprophyillite cluster in matrix.
Location: Slyuda (mica) quarry, Kovdor, Kola Peninsula, Russia. Scale: See Image.
© Rruff Database

Nabalamprophyllite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.8141:1:0.7709
Help on Cell Dimensions: Cell Dimensions: a = 19.741, b = 7.015, c = 5.408, Z = 2; beta = 96.67° V = 743.85 Den(Calc)= 3.62
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.797(1)(221), 9.87(0.96)(200), 3.45(0.9)(311,510),3.275(0.78)(600), 3.75(0.65)(311), 2.61(0.43)(421,710), 3.04(0.41)(511), 2.14
 

Physical Properties of Nabalamprophyllite

Help on Cleavage: Cleavage: {100} Perfect
Help on Color: Color: Brown, Yellowish brown.
Help on Density: Density: 3.58
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: white
 

Optical Properties of Nabalamprophyllite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.102 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.112 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2122,KPDmeas= 0.2145,KC= 0.239
Ncalc = 1.86 - 1.87
Help on Optical Data: Optical Data: Biaxial (+), a=1.75, b=1.755, g=1.799, bire=0.0490, 2V(Calc)=38, 2V(Meas)=40. Dispersion r > v strong.
 

Calculated Properties of Nabalamprophyllite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.37 gm/cc
note: Specific Gravity of Nabalamprophyllite =3.58 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.06
Boson Index = 0.94
Help on Photoelectric: Photoelectric: PENabalamprophyllite = 97.75 barns/electron
U=PENabalamprophyllite x relectron= 329.38 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 10.49 (Gamma Ray American Petroleum Institute Units)
Concentration of Nabalamprophyllite per GRapi unit = 9.53 (%)

Estimated Radioactivity from Nabalamprophyllite - barely detectable

 

Nabalamprophyllite Classification

Help on  Dana Class: Dana Class: 56.02.06c.08 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.02)with cations in [4] and/or >[4] coordination
  (56.02.06c)Seidozerite - Lamprophyllite group (Lamprophyllite subgroup)
 
56.02.06c.01 Barytolamprophyllite Ba2Na3(Fe,Ti)3(Si2O7)2(O,OH,F)4 C 2/m 2/m
 
56.02.06c.02 Delindeite Ba2(Na,K,[])3(Ti,Fe)[Ti2(O,OH)4Si4O14](H2O,OH)2 A2/m 2/m
 
56.02.06c.03 Ericssonite BaMn2FeO[Si2O7](OH) C 2/m 2/m
 
56.02.06c.04 Lamprophyllite Na2(Sr,Ba)2Ti3(SiO4)4(OH,F)2 C 2/m 2/m
 
56.02.06c.05 Orthoericssonite BaMn2(FeO)Si2O7(OH) Pmmn 2/m 2/m 2/m
 
56.02.06c.06 Andremeyerite BaFe(Fe,Mn,Mg)Si2O7 P 21/c 2/m
 
56.02.06c.07 Eveslogite! (Ca,K,Na,Sr,Ba)48[(Ti,Nb,Fe,Mn)12(OH)12Si48O144](F,OH,Cl)14 P 2/m 2/m
 
56.02.06c.08 Nabalamprophyllite! Ba(Na,Ba){Na3Ti[Ti2O2Si4O14](OH,F)2} P 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.BE.25 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BE -Si2O7 groups with additional anions;
 
09.BE.25 Barytolamprophyllite Ba2Na3(Fe,Ti)3(Si2O7)2(O,OH,F)4 C 2/m 2/m
 
09.BE.25 Ericssonite BaMn2FeO[Si2O7](OH) C 2/m 2/m
 
09.BE.25 Lamprophyllite Na2(Sr,Ba)2Ti3(SiO4)4(OH,F)2 C 2/m 2/m
 
09.BE.25 Orthoericssonite BaMn2(FeO)Si2O7(OH) Pmmn 2/m 2/m 2/m
 
09.BE.25 Seidozerite (Na,Ca)2(Zr,Ti,Mn)2Si2O7(O,F)2 P 2/c 2/m
 
09.BE.25 Nabalamprophyllite! Ba(Na,Ba){Na3Ti[Ti2O2Si4O14](OH,F)2} P 2/m 2/m
 
09.BE.25 Grenmarite! (Zr,Mn)2(Zr,Ti)(Mn,Na)(Na,Ca)4(Si2O7)2(O,F)4 P 2/c 2/m
 

Other Nabalamprophyllite Information

Help on References: References: NAME( CanMin, 42:1919) PHYS. PROP.(CanMin, 42:1919) OPTIC PROP.(CanMin, 42:1919)
Help on See Also: See Also: Links to other databases for Nabalamprophyllite :
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 Nabalamprophyllite Specimen Label here :

Nabalamprophyllite

Ba(Na,Ba){Na3Ti[Ti2O2Si4O14](OH,F)2}
Dana No: 56.02.06c.08 Strunz No: 09.BE.25
Locality:

 

Notes:

 

 
   
 


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