Vuoriyarvite-K Mineral Data + Say VUORIYARVITE-K


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General Vuoriyarvite-K Information

Help on Chemical  Formula: Chemical Formula: (K,Na)2(Nb,Ti)2Si4O12(O,OH)2·4(H2O)
Help on Composition: Composition: Molecular Weight = 654.35 gm
   Potassium   5.98 %  K     7.20 % K2O
   Barium      2.10 %  Ba    2.34 % BaO
   Sodium      2.11 %  Na    2.84 % Na2O
   Titanium    0.73 %  Ti    1.22 % TiO2
   Niobium    25.56 %  Nb   36.56 % Nb2O5
   Silicon    17.17 %  Si   36.73 % SiO2
   Hydrogen    1.37 %  H    12.25 % H2O
   Oxygen     44.99 %  O
             ______        ______ 
             100.00 %       99.14 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KNa0.6Ba0.1Nb1.8Ti0.1Si4O13.7(OH)0.5·4.2(H2O)
Help on Environment: Environment: The mineral formed by the hydrothermal alteration of pyrochlore.
Help on IMA Status: IMA Status: Approved IMA 1995 (Dana # Added)
Help on Locality: Locality: Lake Vuoriyarvi and the Vuoriyarvi alkali-ultramafic complex, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: The name reflects the discovery locality.
Help on Synonym: Synonym: IMA1995-031
  IMA2000-A
  Vuoriyarvite
 

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Vuoriyarvite-K Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0372:1:0.5548
Help on Cell Dimensions: Cell Dimensions: a = 14.692, b = 14.164, c = 7.859, Z = 4; beta = 117.87° V = 1,445.74 Den(Calc)= 3.01
Help on Crystal System: Crystal System: Monoclinic - DomaticH-M Symbol (m) Space Group: Cm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.262(1)(421), 7.1(0.9)(020), 3.151(0.8)(041),4.98(0.6)(021), 2.956(0.6)(112), 1.723(0.4)(463,463,714,2.549(0.4)(441),
 

Physical Properties of Vuoriyarvite-K

Help on Cleavage: Cleavage: None
Help on Color: Color: White.
Help on Density: Density: 2.95
Help on Diaphaniety: Diaphaniety: Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Vuoriyarvite-K

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.042 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.061 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2285,KPDmeas= 0.2331,KC= 0.2433
Help on Optical Data: Optical Data: Biaxial (+), a=1.649, b=1.655, g=1.759, bire=0.1100, 2V(Calc)=30, 2V(Meas)=20-28. Dispersion weak, r < v.
 

Calculated Properties of Vuoriyarvite-K

Help on Electron Density: Electron Density:

relectron=2.88 gm/cc
note: rVuoriyarvite-K =2.95 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.01292
Boson Index = 0.98708
Help on Photoelectric: Photoelectric:

PEVuoriyarvite-K = 47.12 barns/electron
U=PEVuoriyarvite-K x relectron= 135.66 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 84.12 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Vuoriyarvite-K - barely detectable

 

Vuoriyarvite-K Classification

Help on  Dana Class: Dana Class: 60.1.3b.1 (60)Cyclosilicate Four-Membered Rings
  (60.1)as Titanosilicates
  (60.1.3b)Labuntsovite Group (Vuoriyarvite subgroup Monoclinic [Cm])
 
60.1.3b.1 Vuoriyarvite-K ! (K,Na)2(Nb,Ti)2Si4O12(O,OH)2·4(H2O) Cm m
 
60.1.3b.2 Tsepinite-Na! (Na,H3O,K,Sr,Ba)2(Ti,Nb)2[Si4O12](OH,O)2·3(H2O) Cm m
 
60.1.3b.3 Tsepinite-K! (K,Ba,Na)2(Ti,Nb)2(Si4O12)(OH,O)2·3(H2O) Cm m
 
60.1.3b.4 Tsepinite-Ca! (Ca,K,Na,[])2(Ti,Nb)2(Si4O12)(OH,O)2·4(H2O) C 2/m 2/m
 
60.1.3b.5 Paratsepinite-Ba! (Ba,Na,K)2-x(Ti,Nb)2(Si4O12)(OH,O)2·4(H2O) C 2/m 2/m
Help on  Strunz Class: Strunz Class: VIII/E.07-40 VIII - Silicates
  VIII/E - Cyklosilicates, quadruplet rings [Si4O11]8-
  VIII/E.07 - Labuntsovite Group
 
VIII/E.07-10 Korobitsynite! Na3(Ti,Nb)2[Si4O12](OH,O)2·3-4(H2O) Pbam 2/m 2/m 2/m
 
VIII/E.07-20 Nenadkevichite (Na,Ca,K)(Nb,Ti)Si2O6(O,OH)·2(H2O) Pbam 2/m 2/m 2/m
 
VIII/E.07-30* Strontiochevkinite (Sr,REE)4Fe(Ti,Zr)2Ti2Si4O22 C 2/a 2/m
 
VIII/E.07-30 Tsepinite-Na! (Na,H3O,K,Sr,Ba)2(Ti,Nb)2[Si4O12](OH,O)2·3(H2O) Cm m
 
VIII/E.07-32 Tsepinite-K! (K,Ba,Na)2(Ti,Nb)2(Si4O12)(OH,O)2·3(H2O) Cm m
 
VIII/E.07-33 Tsepinite-Ca! (Ca,K,Na,[])2(Ti,Nb)2(Si4O12)(OH,O)2·4(H2O) C 2/m 2/m
 
VIII/E.07-34 Paratsepinite-Ba! (Ba,Na,K)2-x(Ti,Nb)2(Si4O12)(OH,O)2·4(H2O) C 2/m 2/m
 
VIII/E.07-40 Vuoriyarvite-K (K,Na)2(Nb,Ti)2Si4O12(O,OH)2·4(H2O) Cm m
 
VIII/E.07-50 Clinophosinaite! Na3CaPSiO7 P 2/c 2/m
 
VIII/E.07-50* Kuzmenkoite-Zn! K2Zn(Ti,Nb)4(Si4O12)2(OH,O)4·6-8(H2O) Cm m
 
VIII/E.07-60* Kuzmenkoite-Mn! (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4·5(H2O) C 2/m 2/m
 
VIII/E.07-60 Phosinaite-(Ce)! Na13Ca2Ce[Si4O12](PO4)4 P 22121 2 2 2
 
VIII/E.07-70 Gjerdingenite-Fe! K2[(H2O)2(Fe,Mn)][(Nb,Ti)4(Si4O12)2(O,OH)4]·4(H2O) C 2/m 2/m
 
VIII/E.07-80 Gjerdingenite-Mn! (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) C 2/m 2/m
 
VIII/E.07-90 Karupmollerite-Ca! (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·7(H2O) C 2/m 2/m
 
VIII/E.07-100 Lemmleinite-K! NaK2(Ti,Nb)2Si4O12(O,OH)2·2(H2O) C 2/m 2/m
 
VIII/E.07-110 Lemmleinite-Ba! Na2K2Ba1-xTi4(Si4O12)2(O,OH)4·5(H2O) C 2/m 2/m
 
VIII/E.07-130 Paralabuntsovite-Mg! Na8K8Mg8Ti16(Si4O12)8(O,OH)16·n(H2O) I2/m 2/m
 
VIII/E.07-140 Labuntsovite-Mg! Na4K4(Ba,K)(Mg,Fe)1xTi8(Si4O12)4(O,OH)8·10(H2O) C 2/m 2/m
 
VIII/E.07-150 Labuntsovite-Fe! Na4K4(Ba,K)2(Fe,Mg,Mn)1xTi8(Si4O12)4(O,OH)8·10(H2O) C 2/m 2/m
 
VIII/E.07-155 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
 
VIII/E.07-170 Parakuzmenkoite-Fe! (K,Ba)2Fe(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) C 2/m 2/m
 
VIII/E.07-180 Organovaite-Zn! K2Zn(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) C 2/m 2/m
 
VIII/E.07-190 Organovaite-Mn! K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) Cm m
 
VIII/E.07-200 Gutkovaite-Mn! CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4·5(H2O) Cm m
 
VIII/E.07-205 Neskevaaraite-Fe! NaK3Fe(Ti,Nb)4(Si4O12)2(O,OH)4·6(H2O) Cm m
 
VIII/E.07-210 Alsakharovite-Zn! NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) Cm m
 
VIII/E.07-220 Lepkhenelmite-Zn! Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) Cm m
 

Other Vuoriyarvite-K Information

Help on References: References: NAME( CanMin, 8/99) PHYS. PROP.(AmMin, Vol 83, p 1349) OPTIC PROP.(AmMin, Vol 83, p 1349)
Help on See Also: See Also: Links to other databases for Vuoriyarvite-K :
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 -Athena 5 -Google Images 6 -Google Scholar 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas

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Vuoriyarvite-K

(K,Na)2(Nb,Ti)2Si4O12(O,OH)2·4(H2O)
Dana No: 60.1.3b.1 Strunz No: VIII/E.07-40
Locality:

 

Notes:

 

 
   
 
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