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Voronkovite Mineral Data

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General Voronkovite Information

Help on Chemical  Formula: Chemical Formula: Na15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si26O72(OH,O)4Cl•H2O
Help on Composition: Composition: Molecular Weight = 3,126.11 gm
   Potassium   0.24 %  K     0.29 % K2O
   Sodium     11.83 %  Na   15.94 % Na2O
   Strontium   1.51 %  Sr    1.79 % SrO
   Calcium     2.22 %  Ca    3.10 % CaO
   Lanthanum   0.80 %  La    0.94 % La2O3
   Cerium      1.17 %  Ce    1.36 % Ce2O3
   Hafnium     0.23 %  Hf    0.27 % HfO2
   Zirconium  10.51 %  Zr   14.19 % ZrO2
   Titanium    0.20 %  Ti    0.33 % TiO2
   Manganese   3.62 %  Mn    4.67 % MnO
   Niobium     0.62 %  Nb    0.89 % Nb2O5
   Aluminum    0.08 %  Al    0.15 % Al2O3
   Iron        2.75 %  Fe    3.54 % FeO
   Silicon    23.28 %  Si   49.80 % SiO2
   Hydrogen    0.18 %  H     1.57 % H2O
   Neodymium   0.60 %  Nd    0.70 % Nd2O3
   Chlorine    0.44 %  Cl    0.44 % Cl
                -   %   Cl   -0.10 % -O=Cl2   
   Oxygen     39.53 %  O
   Fluorine    0.21 %  F     0.21 % F
                -   %   F    -0.09 % -O=F2    
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na13.96Sr0.54K0.19Na1.64Ca0.92Ce0.26La0.18Mn2+2.06Ca0.81Nd0.13Fe2+1.54Zr0.6Na0.48 Nb0.21Ti0.13Hf0.04Zr3Si1.91Al0.09�1.23(H2O)
Help on Environment: Environment: Found in the hyperagpaitic pegmatite body. Eudialyte group.
Help on IMA Status: IMA Status: Approved IMA 2007 (Dana # Added)
Help on Locality: Locality: Mt. Alluaiv, Lovozero alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Alexander A. Voronkov (1928-1982), a prominent Russian crystallographer.
Help on Synonym: Synonym: IMA2007-023
 

Voronkovite Image

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  Voronkovite

Comments: Brownish red cleavage fragment of voronkovite.
Location: Alluaiv Mt., Lovozero Massif, Kola Peninsula, Russia. Scale: Specimen Size 5 x 2 mm.
© Sergey Vasiliev / Systematic Mineralogy

Voronkovite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.13058
Help on Cell Dimensions: Cell Dimensions: a = 14.205, c = 30.265, Z = 3; V = 5,288.76 Den(Calc)= 2.94
Help on Crystal System: Crystal System: Trigonal - Pyramidal H-M Symbol (3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.97(1), 4.316(0.85), 2.848(0.84),3.221(0.43), 3.039(0.41), 3.536(0.41), 3.166(0.37), 2.157(0.34),
 

Physical Properties of Voronkovite

Help on Cleavage: Cleavage: None
Help on Color: Color: Light brown.
Help on Density: Density: 2.97
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Subhedral Crystals - Occurs as crystals which tend to exhibit a recognizable crystal shape.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Voronkovite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.01 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.209,KPDmeas= 0.2069,KC= 0.2048
Ncalc = 1.6 - 1.61
Help on Optical Data: Optical Data: Uniaxial (+), w=1.61, e=1.619, bire=0.0090.
 

Calculated Properties of Voronkovite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.88 gm/cc
note: Specific Gravity of Voronkovite =2.97 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEVoronkovite = 34.35 barns/electron
U=PEVoronkovite x relectron= 98.91 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 2,656.27 (Gamma Ray American Petroleum Institute Units)
Concentration of Voronkovite per GRapi unit = 376.47 (PPM)

Estimated Radioactivity from Voronkovite - mild
Specimen
Size
Weight/Volume
(Sphere)
*
Calculated
Activity
Bequerols
(Bq)
Calculated
Activity
Curies (Ci)
Estimated
Activity
GR(api)
Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 8.63 cm 57,528 1.55E-06 2,656.27 0.87
100 gm / 4.01 cm 5,753 1.55E-07 265.63 0.09
10 gm / 1.86 cm 575 1.55E-08 26.56 0.01
1 gm / 8.63 mm 58 1.55E-09 2.66 0.00
0.1 gm / 4.01 mm 6 1.55E-10 0.27 0.00
0.01 gm / 1.86 mm 1 1.55E-11 0.03 0.00
0.001 gm / 0.86 mm 0 1.55E-12 0.00 0.00

Weight of pure Voronkovite in grams (gm) and Calculated Diameter of a Sphere with a Density of 2.97 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
Estimated Thorium Activity ( 0.13 % Th) From Sum REE Elements ( 2.56 % REE)
 

Voronkovite Classification

Help on  Dana Class: Dana Class: 64.01.01.22 (64)Cyclosilicates
  (64.01)Cyclosilicate Rings with Other Anions and Insular Silicate Groups with mixed ring types
  (64.01.01)Eudialyte Group
 
64.01.01.01 Eudialyte Na4(Ca,Ce)2(Fe,Mn,Y)ZrSi8O22(OH,Cl)2(?) R 3m 3 2/m
 
64.01.01.02 Alluaivite Na19(Ca,Mn)6(Ti,Nb)3(Si3O9)2(Si10O28)2Cl•2(H2O) R 3m 3 2/m
 
64.01.01.03 Kentbrooksite! (Na,REE)15(Ca,REE)6MnZr3NbSi25O74F2•2(H2O) R 3m 3m
 
64.01.01.04 Khomyakovite! Na12Sr3Ca6Fe3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2 R 3m 3m
 
64.01.01.05 Manganokhomyakovite! Na12Sr3Ca6Mn3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2 R 3m 3m
 
64.01.01.06 Oneillite! Na15Ca3Mn3Fe3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2 R 3 3
 
64.01.01.07 Ferrokentbrooksite! Na15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3(Cl,F,OH)2 R 3m 3m
 
64.01.01.08 Ikranite! (Na,H3O)15(Ca,Mn,REE)6Fe2Zr3([],Zr)([],Si)Si24O66(O,OH)6Cl•2-3H2O R 3m 3m
 
64.01.01.09 Feklichevite! Na11Ca9(Fe,Fe)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5 R 3m 3m
 
64.01.01.10 Rastsvetaevite! Na27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2 R 3m 3m
 
64.01.01.11 Taseqite! Na12Sr3Ca6Fe3Zr3NbSi25O73(O,OH,H2O)3Cl2 R 3m 3m
 
64.01.01.12 Carbokentbrooksite! (Na,[])12(Na,Ce)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)•H2O R 3m 3m
 
64.01.01.13 Zirsilite-(Ce)! (Na,[])12(Ce,Na)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)•H2O R 3m 3m
 
64.01.01.14 Labyrinthite! (Na,K,Sr)35Ca12Fe3Zr6TiSi51O144(O,OH,H2O)9Cl3 R 3m 3m
 
64.01.01.15 Aqualite! (H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl R 3m 3m
 
64.01.01.16 Raslakite! Na15Ca3Fe3(Na,Zr)3Zr3(Si,Nb)(Si25O73)(OH,H2O)3(Cl,OH) R 3m 3m
 
64.01.01.17 Georgbarsanovite! Na12(Mn,Sr,REE)3Ca6Fe3Zr3NbSi25O76Cl2•H2O R 3m 3m
 
64.01.01.18 Johnsenite-(Ce)! Na12(Ce,REE,Sr)3Ca6Mn3Zr3W(Si25O73)(CO3)(OH,Cl)2 R 3m 3m
 
64.01.01.19 Golyshevite! (Na,Ca)10Ca9(Fe,Fe)2Zr3NbSi25O72(CO3)(OH)3•H2O R 3m 3m
 
64.01.01.20 Mogovidite! Na9(Ca,Na)6Ca6Fe2Zr3[]Si25O72(CO3)(OH)4 R 3m 3m
 
64.01.01.21 Dualite! Na30(Ca,Na,Ce,Sr)12(Na,Mn,Fe,Ti)6Zr3Ti3MnSi51O144(OH,H2O,Cl)9 R 3m 3m
 
64.01.01.22 Voronkovite! Na15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si26O72(OH,O)4Cl•H2O R 3 3
Help on  Strunz Class: Strunz Class: 09.CO.10 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CO -[Si9O27]18- 9-membered rings
 
09.CO.10 Alluaivite Na19(Ca,Mn)6(Ti,Nb)3(Si3O9)2(Si10O28)2Cl•2(H2O) R 3m 3 2/m
 
09.CO.10 Eudialyte Na4(Ca,Ce)2(Fe,Mn,Y)ZrSi8O22(OH,Cl)2(?) R 3m 3 2/m
 
09.CO.10 Kentbrooksite! (Na,REE)15(Ca,REE)6MnZr3NbSi25O74F2•2(H2O) R 3m 3m
 
09.CO.10 Labyrinthite! (Na,K,Sr)35Ca12Fe3Zr6TiSi51O144(O,OH,H2O)9Cl3 R 3m 3m
 
09.CO.10 Carbokentbrooksite! (Na,[])12(Na,Ce)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)•H2O R 3m 3m
 
09.CO.10 Zirsilite-(Ce)! (Na,[])12(Ce,Na)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)•H2O R 3m 3m
 
09.CO.10 Mogovidite! Na9(Ca,Na)6Ca6Fe2Zr3[]Si25O72(CO3)(OH)4 R 3m 3m
 
09.CO.10 Voronkovite! Na15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si26O72(OH,O)4Cl•H2O R 3 3
 
09.CO.10 Taseqite! Na12Sr3Ca6Fe3Zr3NbSi25O73(O,OH,H2O)3Cl2 R 3m 3m
 
09.CO.10 Aqualite! (H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl R 3m 3m
 
09.CO.10 Raslakite! Na15Ca3Fe3(Na,Zr)3Zr3(Si,Nb)(Si25O73)(OH,H2O)3(Cl,OH) R 3m 3m
 
09.CO.10 Feklichevite! Na11Ca9(Fe,Fe)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5 R 3m 3m
 
09.CO.10 Ikranite! (Na,H3O)15(Ca,Mn,REE)6Fe2Zr3([],Zr)([],Si)Si24O66(O,OH)6Cl•2-3H2O R 3m 3m
 
09.CO.10 Khomyakovite! Na12Sr3Ca6Fe3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2 R 3m 3m
 
09.CO.10 Manganokhomyakovite! Na12Sr3Ca6Mn3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2 R 3m 3m
 
09.CO.10 Oneillite! Na15Ca3Mn3Fe3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2 R 3 3
 
09.CO.10 Ferrokentbrooksite! Na15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3(Cl,F,OH)2 R 3m 3m
 
09.CO.10 Rastsvetaevite! Na27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2 R 3m 3m
 
09.CO.10 Johnsenite-(Ce)! Na12(Ce,REE,Sr)3Ca6Mn3Zr3W(Si25O73)(CO3)(OH,Cl)2 R 3m 3m
 
09.CO.10 Georgbarsanovite! Na12(Mn,Sr,REE)3Ca6Fe3Zr3NbSi25O76Cl2•H2O R 3m 3m
 
09.CO.10 Golyshevite! (Na,Ca)10Ca9(Fe,Fe)2Zr3NbSi25O72(CO3)(OH)3•H2O R 3m 3m
 
09.CO.10 Dualite! Na30(Ca,Na,Ce,Sr)12(Na,Mn,Fe,Ti)6Zr3Ti3MnSi51O144(OH,H2O,Cl)9 R 3m 3m
 

Other Voronkovite Information

Help on References: References: NAME( Russian Mineralogical Soc., v138:66) PHYS. PROP.(Russian Mineralogical Soc., v138:66) OPTIC PROP.(Russian Mineralogical Soc., v138:66)
Help on See Also: See Also: Links to other databases for Voronkovite :
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 Voronkovite Specimen Label here :

Voronkovite

Na15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si26O72(OH,O)4Cl•H2O
Dana No: 64.01.01.22 Strunz No: 09.CO.10
Locality:

 

Notes:

 

 
   
 


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