IMA2008-065 Mineral Data

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General IMA2008-065 Information

Chemical Formula:

(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)

Composition:

Molecular Weight = 1,095.61 gm

Potassium 7.14 % K 8.60 % K₂O

Sodium 8.39 % Na 11.31 % Na₂O

Calcium 7.32 % Ca 10.24 % CaO

Aluminum 14.78 % Al 27.92 % Al₂O₃

Silicon 15.38 % Si 32.90 % SiO₂

Carbon 1.10 % C 4.02 % CO₂

Chlorine 6.47 % Cl 6.47 % Cl

- % Cl -1.46 % -O=Cl₂

Oxygen 39.43 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Na₄K₂Ca₂Si₆Al₆O₂₄Cl₂(CO₃)

Environment:

Cancrinite group

IMA Status:

Proposed IMA 2009 (Dana # Added)

Locality:

Monte Somma, Vesuvius volcanic complex, Campania, Italy Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

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IMA2008-065 Crystallography

Axial Ratios:

a:c = 1:0.41945

Cell Dimensions:

a = 12.695, c = 5.325, Z = 1; V = 743.22 Den(Calc)= 2.45

Crystal System:

Hexagonal - PyramidalH-M Symbol (6) Space Group: P 6₃

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

By Intensity(I/I_o): 4.797(1), 3.281(0.73), 2.662(0.58),3.669(0.57), 2.446(0.31), 2.12(0.18), 2.754(0.16), 2.648(0.13),

Crystal Structure:

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Ballirano P , Bonaccorsi E , Merlino S , The Canadian Mineralogist , 36 (1998) p.1285-1292, Carbonate groups in davyne: Structural and crystal-chemical considerations

Optical Properties of IMA2008-065

Optical Data:

NCalc= 1.53 - from Gladstone-Dale relationship (KC = 0.215) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2008-065

Electron Density:

Bulk Density (Electron Density)=2.42 gm/cc
note: Specific Gravity of IMA2008-065 =2.45 gm/cc.

Fermion Index:

Fermion Index = 0.007599961
Boson Index = 0.992400039

Photoelectric:

PE_IMA2008-065= 3.21 barns/electron
U=PE_IMA2008-065 x r_electron= 7.75 barns/cc.

Radioactivity:

GRapi = 101.53 (Gamma Ray American Petroleum Institute Units)
Concentration of IMA2008-065 per GRapi unit = 0.98 (%)

Estimated Radioactivity from IMA2008-065 - barely detectable

IMA2008-065 Classification

Dana Class:

76.02.05.23 (76)Tectosilicate Al-Si Framework

(76.02)Feldspathoids and related species

(76.02.05)Cancrinite group

76.02.05.01 Afghanite (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3•(H2O) P 6₃/mmc, P 6₃mc, or P 62c Hex

76.02.05.02 Bystrite (Na,K)7Ca(Si6Al6)O24S4.5•(H2O) P 3₁c 3m

76.02.05.03 Cancrinite Na6Ca2Al6Si6O24(CO3)2 P 6₃ 6

76.02.05.04 Cancrisilite Na7Al5Si7O24(C03)•3(H2O) P 6₃ 6

76.02.05.05 Davyne Na4K2Ca2Si6Al6O24(SO4)Cl2 P 6₃/m 6/m

76.02.05.06 Franzinite [(Na,K)30Ca10][Si30Al30O120](SO4)10•2(H2O) P 3₂1 3 2

76.02.05.07 Giuseppettite [Na42K16Ca6]S64Si48Al48O192(SO4)10Cl2•5H2O P 3₁c 3m

76.02.05.08 Hydroxycancrinite Na4(AlSiO4)3(OH)•(H2O) P 6₃ 6

76.02.05.09 Liottite (Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4•(H2O) P 6m2 6 m2

76.02.05.10 Microsommite (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3 P 6₃22 6 2 2

76.02.05.11 Pitiglianoite Na6K2Si6Al6O24(SO4)•2(H2O) P 6₃ 6

76.02.05.12 Quadridavyne (Na,K)6Ca2Al6Si6O24Cl4 P 6₃/m 6/m

76.02.05.13 Sacrofanite (Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4•n(H2O) P 6₃/mmc ? 6/m 2/m 2/m

76.02.05.14 Tounkite (Na,Ca,K)8Al6Si6O24(SO4)2Cl•(H2O) P 6₂22 6 2 2

76.02.05.15 Vishnevite (Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2-4•n(H2O) P 6₃22 6 2 2

76.02.05.16 Wenkite Ba4Ca6(Si,Al)20O39(OH)2(SO4)3•n(H2O)(?) P 62m 6 m2

76.02.05.17 Marinellite! [(Na,K)42Ca6](Si36Al36O144)(SO4)8Cl2•6(H2O) P 3₁c or P 2c Trig

76.02.05.18 Farneseite! (Na37K9Ca10)S56(Si42Al42)S84O168(SO4)12•6(H2O) P 6₃/m 6/m 2/m 2/m

76.02.05.19 Alloriite! Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5•H2O P 3₁c 3m

76.02.05.20 Biachellaite (Na,Ca,K)8(Si6Al6O24)(SO4)2(OH)0.5•H2O P 3 3

76.02.05.21 IMA2008-006! [Na82.5Ca33K16.5](Si99Al99O396)(SO4)33•4H2O P 3 3

76.02.05.22 Kyanoxalite! Na7(Al5-6Si6-7O24)(C2O4)0.5-1.0•5H2O P 6₃ 6

76.02.05.23 IMA2008-065! (Na,K)6Ca2(Si6Al6O24)Cl2(CO3) P 6₃ 6

Strunz Class:

09.FB.05 09 - SILICATES (Germanates)

09.F - Tektosilicates without Zeolitic H2O

09.FB -Tektosilicates with additional anions

09.FB.05 Bystrite (Na,K)7Ca(Si6Al6)O24S4.5•(H2O) P 3₁c 3m

09.FB.05 Afghanite (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3•(H2O) P 6₃/mmc, P 6₃mc, or P 62c Hex

09.FB.05 Cancrisilite Na7Al5Si7O24(C03)•3(H2O) P 6₃ 6

09.FB.05 Cancrinite Na6Ca2Al6Si6O24(CO3)2 P 6₃ 6

09.FB.05 Hydroxycancrinite Na4(AlSiO4)3(OH)•(H2O) P 6₃ 6

09.FB.05 Franzinite [(Na,K)30Ca10][Si30Al30O120](SO4)10•2(H2O) P 3₂1 3 2

09.FB.05 Liottite (Ca,Na,K)8(Si,Al)12O24[(SO4),(CO3),Cl,OH]4•(H2O) P 6m2 6 m2

09.FB.05 Davyne Na4K2Ca2Si6Al6O24(SO4)Cl2 P 6₃/m 6/m

09.FB.05 Giuseppettite [Na42K16Ca6]S64Si48Al48O192(SO4)10Cl2•5H2O P 3₁c 3m

09.FB.05 Quadridavyne (Na,K)6Ca2Al6Si6O24Cl4 P 6₃/m 6/m

09.FB.05 Pitiglianoite Na6K2Si6Al6O24(SO4)•2(H2O) P 6₃ 6

09.FB.05 Microsommite (Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3 P 6₃22 6 2 2

09.FB.05 Vishnevite (Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2-4•n(H2O) P 6₃22 6 2 2

09.FB.05 Sacrofanite (Na,Ca,K)9Si6Al6O24[(OH),(SO4),(CO3),Cl)]4•n(H2O) P 6₃/mmc ? 6/m 2/m 2/m

09.FB.05 Marinellite! [(Na,K)42Ca6](Si36Al36O144)(SO4)8Cl2•6(H2O) P 3₁c or P 2c Trig

09.FB.05 Tounkite (Na,Ca,K)8Al6Si6O24(SO4)2Cl•(H2O) P 6₂22 6 2 2

09.FB.05 IMA2008-065! (Na,K)6Ca2(Si6Al6O24)Cl2(CO3) P 6₃ 6

09.FB.05 Farneseite! (Na37K9Ca10)S56(Si42Al42)S84O168(SO4)12•6(H2O) P 6₃/m 6/m 2/m 2/m

09.FB.05 Biachellaite (Na,Ca,K)8(Si6Al6O24)(SO4)2(OH)0.5•H2O P 3 3

09.FB.05 IMA2008-006! [Na82.5Ca33K16.5](Si99Al99O396)(SO4)33•4H2O P 3 3

09.FB.05 Alloriite! Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5•H2O P 3₁c 3m

Other IMA2008-065 Information

See Also:

Links to other databases for IMA2008-065 :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - Mineralienatlas (Deutsch)
7 - Online Mineral Museum
8 - Ruff.Info

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Print or Cut-and-Paste your IMA2008-065 Specimen Label here :

IMA2008-065

(Na,K)6Ca2(Si6Al6O24)Cl2(CO3)
Dana No: 76.02.05.23 Strunz No: 09.FB.05
Locality:

Notes: