Mogovidite Mineral Data

Mogovidite Mineral Data

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General Mogovidite Information

Chemical Formula:

Na9(Ca,Na)6Ca6Fe2Zr3[ ]Si25O72(CO3)(OH)4

Composition:

Molecular Weight = 3,021.17 gm

Sodium 8.37 % Na 11.28 % Na₂O

Calcium 13.27 % Ca 18.56 % CaO

Zirconium 9.06 % Zr 12.24 % ZrO₂

Iron 3.70 % Fe 4.76 % FeO

Silicon 23.24 % Si 49.72 % SiO₂

Hydrogen 0.13 % H 1.19 % H₂O

Carbon 0.40 % C 1.46 % CO₂

Oxygen 41.84 % O

______ ______

100.00 % 99.21 % = TOTAL OXIDE

Empirical Formula:

Na₉Ca₄Na₂Ca₆Fe²⁺₂Zr₃Si₂₅O₇₂(CO₃)(OH)₄

Environment:

Eudialyte group

IMA Status:

Proposed IMA 2004 (Dana # Added)

Locality:

Iron Mine, Kovdor massif, Kola Peninsula, Russia Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

Synonym:

IMA2004-040

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Mogovidite Crystallography

Axial Ratios:

a:c = 1:2.12268

Cell Dimensions:

a = 14.232, c = 30.21, Z = 4; V = 5,299.24 Den(Calc)= 3.79

Crystal System:

Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: R 3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.213(1), 2.977(0.91), 2.859(0.79),3.027(0.65), 4.31(0.64), 2.703(0.46), 2.595(0.45), 3.163(0.44),

Optical Properties of Mogovidite

Optical Data:

NCalc= 1.78 - from Gladstone-Dale relationship (KC = 0.2057) where Ncalc=Dcalc*KC+1

Calculated Properties of Mogovidite

Electron Density:

r_electron=3.73 gm/cc
note: r_Mogovidite=3.79 gm/cc.

Fermion Index

Fermion Index = 0.02222
Boson Index = 0.97778

Photoelectric:

PE_Mogovidite= 15.63 barns/electron
U=PE_Mogovidite x r_electron= 58.23 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Mogovidite is Not Radioactive

Mogovidite Classification

Dana Class:

64.1.1.19 (64)Cyclosilicate Rings with Other Anions and Insular Silicate Groups

(64.1)with mixed ring types

(64.1.1)Eudialyte Group

64.1.1.1 Eudialyte Na4(Ca,Ce)2(Fe,Mn,Y)ZrSi8O22(OH,Cl)2(?) R 3m 3 2/m

64.1.1.2 Alluaivite Na19(Ca,Mn)6(Ti,Nb)3(Si3O9)2(Si10O28)2Cl·2(H2O) R 3m 3 2/m

64.1.1.3 Kentbrooksite! (Na,REE)15(Ca,REE)6MnZr3NbSi25O74F2·2(H2O) R 3m 3m

64.1.1.4 Khomyakovite! Na12Sr3Ca6Fe3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2 R 3m 3m

64.1.1.5 Manganokhomyakovite! Na12Sr3Ca6Mn3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2 R 3m 3m

64.1.1.6 Oneillite! Na15Ca3Mn3Fe3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2 R 3 3

64.1.1.7 Ferrokentbrooksite! Na15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3(Cl,F,OH)2 R 3m 3m

64.1.1.8 Ikranite! (Na,H3O)15(Ca,Mn,REE)6Fe2Zr3([],Zr)([],Si)Si24O66(O,OH)6Cl·2-3H2O R 3m 3m

64.1.1.9 Feklichevite! Na11Ca9(Fe,Fe)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5 R 3m 3m

64.1.1.10 Rastsvetaevite! Na27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2 R 3m 3m

64.1.1.11 Taseqite! Na12Sr3Ca6Fe3Zr3NbSi25O73(O,OH,H2O)3Cl2 R 3m 3m

64.1.1.12 Carbokentbrooksite! (Na,[])12(Na,Ce)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)·H2O R 3m 3m

64.1.1.13 Zirsilite-(Ce)! (Na,[])12(Ce,Na)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)·H2O R 3m 3m

64.1.1.14 Labyrinthite! (Na,K,Sr)35Ca12Fe3Zr6TiSi51O144(O,OH,H2O)9Cl3 R 3m 3m

64.1.1.15 Aqualite! (H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl R 3m 3m

64.1.1.16 Raslakite! Na15Ca3Fe3(Na,Zr)3Zr3(Si,Nb)(Si25O73)(OH,H2O)3(Cl,OH) R 3m 3m

64.1.1.17 Georgbarsanovite! Na12(Mn,Sr,REE)3Ca6Fe3Zr3NbSi25O76Cl2·H2O R 3m 3m

64.1.1.18 IMA2004-026! Na12(Ce,REE,Sr)3Ca6Mn3Zr3W(Si25O73)(OH)3(CO3)·H2O R 3m 3m

64.1.1.19 Mogovidite ! Na9(Ca,Na)6Ca6Fe2Zr3[]Si25O72(CO3)(OH)4 R 3m 3m

Strunz Class:

VIII/EX.00-00 VIII - Silicates

VIII/EX - Unclassified Strunz Cyklosilicates

VIII/EX.00 - Eudialyte group

Other Mogovidite Information

See Also:

Links to other databases for Mogovidite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Mogovidite

Na9(Ca,Na)6Ca6Fe2Zr3[ ]Si25O72(CO3)(OH)4
Dana No: 64.1.1.19 Strunz No: VIII/EX.00-00
Locality:

Notes: