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Vuonnemite Mineral Data

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General Vuonnemite Information

Help on Chemical  Formula: Chemical Formula: Na11Nb2TiSi4O12(PO4)2O5F2
Help on Composition: Composition: Molecular Weight = 1,098.85 gm
   Sodium      23.01 %  Na   31.02 % Na2O
   Titanium     4.36 %  Ti    7.27 % TiO2
   Niobium     16.91 %  Nb   24.19 % Nb2O5
   Silicon     10.22 %  Si   21.87 % SiO2
   Phosphorus   5.64 %  P    12.92 % P2O5
   Oxygen      36.40 %  O
   Fluorine     3.46 %  F     3.46 % F
                 -   %   F    -1.46 % -O=F2    
              ______        ______ 
              100.00 %       99.27 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na11Nb2TiSi4O17(PO4)2F2
Help on Environment: Environment: Albitized alkalic rocks.
Help on IMA Status: IMA Status: Approved IMA 1973
Help on Locality: Locality: Vuonnemi River, Khibiny massif, Kola Peninsula, Russia. Il�maussaq, Greenland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Vuonnemite + Pronunciation Say VUONNEMITE
Help on Synonym: Synonym: ICSD 76910
  PDF 26-972

Vuonnemite Image

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  Ussingite   Vuonnemite

Comments: Massive, violet colored ussingite with a single bladed partial crystal of white vuonnemite 1.5 cm in length.
Location: Mt. Karnasurf, Lovozero, Russia. Scale: 4.2 x 3 cm.
© John Veevaert

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  Vuonnemite   Lorenzenite

Comments: Square vuonnemite crystal with brown, lorenzenite crystals in syenite rock.
Location: Ilimaussaq, Greenland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Vuonnemite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7679:1:2.0175
Help on Cell Dimensions: Cell Dimensions: a = 5.5, b = 7.162, c = 14.45, Z = 1; alpha = 92.63°, beta = 95.33°, gamma = 90.6° V = 566.11 Den(Calc)= 3.22
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.7681(1), 2.8728(1), 4.251(1),

Physical Properties of Vuonnemite

Help on Cleavage: Cleavage: {001} Perfect, {???} Very Good, {???} Very Good
Help on Color: Color: Light yellow, Lemon yellow, Greenish yellow.
Help on Density: Density: 3.13
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luminescence: Luminescence: Fluorescent, Short UV=greenish yellow, Long UV=pale greenish yellow.
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: white

Optical Properties of Vuonnemite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.058 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.085 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2042,KPDmeas= 0.2101,KC= 0.2231
Ncalc = 1.7 - 1.72
Help on Optical Data: Optical Data: Biaxial (+), a=1.636-1.639, b=1.651-1.656, g=1.68-1.683, bire=0.0440
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): colorless.

Calculated Properties of Vuonnemite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.01 gm/cc
note: Specific Gravity of Vuonnemite =3.13 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEVuonnemite = 26.61 barns/electron
U=PEVuonnemite x rElectron Density= 80.19 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Vuonnemite is Not Radioactive

Vuonnemite Classification

Help on  Dana Class: Dana Class: (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.04)with [Si2O7] with phosphate, water
  (56.04.03)Dana Group Vuonnemite Na11Nb2TiSi4O12(PO4)2O5F2 P1 1
Help on  Strunz Class: Strunz Class: 09.BE.35 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BE -Si2O7 groups with additional anions;
09.BE.35 Vuonnemite Na11Nb2TiSi4O12(PO4)2O5F2 P1 1

Other Vuonnemite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Vuonnemite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info

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Dana No: Strunz No: 09.BE.35





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