Manganonaujakasite Mineral Data

Manganonaujakasite Mineral Data
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General Manganonaujakasite Information

Help on Chemical Formula: Chemical Formula: Na6(Mn,Fe++ )Al4Si8O26
Help on Composition: Composition: Molecular Weight = 943.02 gm
   Sodium     14.63 %  Na   19.72 % Na2O
   Manganese   3.09 %  Mn    3.99 % MnO
   Aluminum   11.44 %  Al   21.62 % Al2O3
   Iron        2.90 %  Fe    3.73 % FeO
   Silicon    23.83 %  Si   50.97 % SiO2
   Oxygen     44.11 %  O
             ______        ______ 
             100.00 %      100.03 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na6Mn2+0.53Fe2+0.49Al4Si8O26
Help on Environment: Environment: Irregular grains and phenocrysts in a lovozerite-lomonosovite nepheline syenite.
Help on IMA Status: IMA Status: Approved IMA 1999 (Dana # Added)
Help on Locality: Locality: Lovozero alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the manganese analog of naujakasite.
Help on Synonym: Synonym: IMA1999-031
 

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Manganonaujakasite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.8808:1:1.3109
Help on Cell Dimensions: Cell Dimensions: a = 15.039, b = 7.996, c = 10.482, Z = 2; beta = 113.51° V = 1,155.85 Den(Calc)= 2.71
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.068(1)(022,313,221), 3.623(0.92)(112), 3.995(0.65)(020,310), 3.485(0.58)(203,221), 3.552(0.56)(402), 2.613(0.39)(420), 3.362(0.33), 3.45(0
 

Physical Properties of Manganonaujakasite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Bright blue.
Help on Density: Density: 2.67
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: pale blue
 

Optical Properties of Manganonaujakasite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.01 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2022,KPDmeas= 0.2052,KC= 0.2031
Ncalc = 1.54 - 1.55
Help on Optical Data: Optical Data: Biaxial (-), a=1.539, b=1.551, g=1.554, bire=0.0150, 2V(Calc)=52, 2V(Meas)=54. Dispersion r < v.
 

Calculated Properties of Manganonaujakasite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.67 gm/cc
note: Specific Gravity of Manganonaujakasite =2.71 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEManganonaujakasite = 3.11 barns/electron
U=PEManganonaujakasite x rElectron Density= 8.31 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Manganonaujakasite is Not Radioactive
 

Manganonaujakasite Classification
Help on Dana Class: Dana Class: 73.01.01.02 (73)Phyllosilicate Condensed Tetrahedral Sheets
  (73.01)with double layers
  (73.01.01)Dana Group
 
73.01.01.01 Naujakasite Na6(Fe,Mn)Al4Si8O26 C 2/m 2/m
 
73.01.01.02 Manganonaujakasite! Na6(Mn,Fe)Al4Si8O26 C 2/m 2/m
Help on Strunz Class: Strunz Class: 09.EG.10 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EG -Double nets with 6-membered and larger rings
 
09.EG.10 Naujakasite Na6(Fe,Mn)Al4Si8O26 C 2/m 2/m
 
09.EG.10 Manganonaujakasite! Na6(Mn,Fe)Al4Si8O26 C 2/m 2/m
 

Other Manganonaujakasite Information
Help on References: References: NAME( AmMin, Vol 86, p 1113) PHYS. PROP.(AmMin, Vol 86, p 1113) OPTIC PROP.(AmMin, Vol 86, p 1113)
Help on See Also: See Also: Links to other databases for Manganonaujakasite :
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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Manganonaujakasite

Na6(Mn,Fe++ )Al4Si8O26
Dana No: 73.01.01.02 Strunz No: 09.EG.10
Locality:

 

Notes: