Vuonnemite Mineral Data + Say VUONNEMITE

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. Ilímaussaq, Greenland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Synonym: Synonym: ICSD 76910
  PDF 26-972
 

Vuonnemite Image

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Vuonnemite   Ussingite

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 - PinacoidalH-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),
Click Here for Large Vuonnemite Structure Window Crystal Structure:

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Ercit T S , Cooper M A , Hawthorne F C , The Canadian Mineralogist , 36 (1998) p.1311-1320, The crystal structure of vuonnemite, Na11TiNb2(Si2O7)2(PO4)2O3(F,OH),, a phosphate-bearing sorosilicate of the lomonosovite group, Locality: Ilimaussaq, Greenland

View Additional jPOWD Structure files for Vuonnemite
[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
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:

relectron=3.01 gm/cc
note: rVuonnemite =3.13 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.01058
Boson Index = 0.98942
Help on Photoelectric: Photoelectric:

PEVuonnemite = 26.61 barns/electron
U=PEVuonnemite x relectron= 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: 56.4.3.1 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.4)with [Si2O7] with phosphate, water
  (56.4.3)Dana Group
 
56.4.3.1 Vuonnemite Na11Nb2TiSi4O12(PO4)2O5F2 P1 1
Help on Strunz Class: Strunz Class: VIII/C.14-80 VIII - Silicates
  VIII/C - Sorosilicates with [Si2O7]6-, with anions unfamiliar to tetraheders [O,OH,F]
  VIII/C.14 - Fresnoite - Belkovite series
 
VIII/C.14-20 Muirite Ba10Ca2MnTiSi10O30(OH,Cl,F)10 P 4/mmm 4/m 2/m 2/m
 
VIII/C.14-30 Belkovite! Ba3(Nb,Ti)6(Si2O7)2O12 P 62m 6 m2
 
VIII/C.14-40 Murmanite Na3(Ti,Nb)4(Si2O7)2O4·4(H2O) P1 ? 1
 
VIII/C.14-50 Epistolite Na4Nb2Ti(Si2O7)2O2(OH)2·4(H2O) P1 1
 
VIII/C.14-70 Lomonosovite Na5Ti2O2(Si2O7)(PO4) P1 1
 
VIII/C.14-80 Vuonnemite Na11Nb2TiSi4O12(PO4)2O5F2 P1 1
 
VIII/C.14-110 Bussenite! Na2(Ba,Sr)2(Fe,Mn)TiSi2O7(CO3)(OH)3F P1 1
 
VIII/C.14-120* Quadruphite-VII Na14CaMgTi4[Si2O7]2(PO4)4O4F2 P1 1
 
VIII/C.14-120 Quadruphite-VIII Na14CaMgTi4(Si2O7)2(PO4)4O4F2 P1 1
 
VIII/C.14-130 Sobolevite Na11(Na,Ca)4(Mg,Mn)Ti4(Si4O12)(PO4)4O5F3 P1 1
 
VIII/C.14-140* Polyphite-VII Na17Ca3Mg(Ti,Mn)4[Si2O7]2(PO4)6O2F6 P1 1
 
VIII/C.14-140 Polyphite-VIII Na17Ca3Mg(Ti,Mn)4[Si2O7]2(PO4)6O2F6 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 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (MinSocAm) 9 -Handbook of Mineralogy (UofA) 10 -MinDAT 11 -MinMax(Deutsch) 12 -MinMax(English) 13 -Mineralienatlas (Deutsch) 14 -QUT Mineral Atlas 15 - WWW-MINCRYST 16 -École des Mines de Paris

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Vuonnemite

Na11Nb2TiSi4O12(PO4)2O5F2
Dana No: 56.4.3.1 Strunz No: VIII/C.14-80
Locality:

 

Notes:

 
 
   
 
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