Franzinite Mineral Data (original) (raw)

General Franzinite Information

Help on Chemical Formula: Chemical Formula:

[(Na,K)30Ca10][Si30Al30O120](SO4)10•2(H2O)

Help on Composition: Composition:

Molecular Weight = 5,804.06 gm

Potassium 6.06 % K 7.30 % K2O

Sodium 8.32 % Na 11.21 % Na2O

Calcium 6.91 % Ca 9.66 % CaO

Aluminum 13.95 % Al 26.35 % Al2O3

Silicon 14.52 % Si 31.06 % SiO2

Hydrogen 0.07 % H 0.62 % H2O

Sulfur 5.52 % S 13.79 % SO3

Oxygen 44.66 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Na21K9Ca10Si30Al30O120(SO4)10•2(H2O)

Help on Environment: Environment:

In ejected metasomatized pumice blocks, thought to be the product of a syntectic process between a trachytic magma and carbonate rocks at the volcanic vent.

Help on IMA Status: IMA Status:

Approved IMA 1977

Help on Locality: Locality:

In Italy, in the Pitigliano quarry, near Grosseto, Tuscany; and at Sacrofano and Ariccia, near Rome, Lazio. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

For Marco Franzini, Professor of Mineralogy, University of Pisa, Pisa, Italy.

Help on Name Pronunciation: Name Pronunciation:

Franzinite + Pronunciation Say FRANZINITE

Help on Synonym: Synonym:

ICSD 89863

PDF 30-1170

Franzinite Image

Click Here for Larger Franzinite Image in a New Browser Window Images:

Franzinite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:2.056

Help on Cell Dimensions: Cell Dimensions:

a = 12.91, c = 26.543, Z = 1; V = 3,831.19 Den(Calc)= 2.52

Help on Crystal System: Crystal System:

Trigonal - TrapezohedralH-M Symbol (3 2) Space Group: P 321

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.72(1), 3.59(0.43), 3.81(0.42),

Click Here for Large Franzinite Structure Window Crystal Structure:

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| | Ballirano P , Bonaccorsi E , Maras A , Merlino S , The Canadian Mineralogist , 38 (2000) p.657-668, The crystal structure of franzinite, the ten-layer mineral of, the cancrinite group | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |

Physical Properties of Franzinite

Help on Cleavage: Cleavage:

{0001} Distinct

Help on Color: Color:

Pearl white.

Help on Density: Density:

2.49

Help on Diaphaneity: Diaphaneity:

Transparent to Translucent

Help on Habit: Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Help on Hardness: Hardness:

5 - Apatite

Help on Luster: Luster:

Vitreous (Glassy)

Help on Streak: Streak:

white

Optical Properties of Franzinite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.006 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2028,KPDmeas= 0.2052,KC= 0.2016
Ncalc = 1.5 - 1.51

Help on Optical Data: Optical Data:

Uniaxial (+), w=1.51, e=1.512, bire=0.0020.

Calculated Properties of Franzinite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.49 gm/cc
note: Specific Gravity of Franzinite =2.52 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0075086691
Boson Index = 0.9924913309

Help on Photoelectric: Photoelectric:

PEFranzinite = 2.89 barns/electron
U=PEFranzinite x relectron= 7.21 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 86.57 (Gamma Ray American Petroleum Institute Units)
Concentration of Franzinite per GRapi unit = 1.16 (%)

Estimated Radioactivity from Franzinite - barely detectable

Franzinite Classification

Help on Dana Class: Dana Class:

76.02.05.06 (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

Help on Strunz Class: 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 Franzinite Information

Help on References: References:

NAME( AntBidBlaNic2) PHYS. PROP.(AmMin, Vol 86) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

Help on See Also: See Also:

Links to other databases for Franzinite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Franzinite Specimen Label here :

Franzinite

[(Na,K)30Ca10][Si30Al30O120](SO4)10•2(H2O)
Dana No: 76.02.05.06 Strunz No: 09.FB.05
Locality:

Notes: