General Franzinite Information![]() [(Na,K)30Ca10][Si30Al30O120](SO4)10•2(H2O) |
![]() Molecular Weight = 5,804.06 gm |
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Potassium 6.06 % K 7.30 % K2O |
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Sodium 8.32 % Na 11.21 % Na2O |
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Calcium 6.91 % Ca 9.66 % CaO |
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Aluminum 13.95 % Al 26.35 % Al2O3 |
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Silicon 14.52 % Si 31.06 % SiO2 |
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Hydrogen 0.07 % H 0.62 % H2O |
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Sulfur 5.52 % S 13.79 % SO3 |
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Oxygen 44.66 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Na21K9Ca10Si30Al30O120(SO4)10•2(H2O) |
![]() 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. |
![]() Approved IMA 1977 |
![]() In Italy, in the Pitigliano quarry, near Grosseto, Tuscany; and at Sacrofano and Ariccia, near Rome, Lazio. Link to MinDat.org Location Data. |
![]() For Marco Franzini, Professor of Mineralogy, University of Pisa, Pisa, Italy. |
![]() Franzinite + Pronunciation |
![]() ![]() ICSD 89863 |
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PDF 30-1170 |
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Franzinite Crystallography![]() a:c = 1:2.056 |
![]() a = 12.91, c = 26.543, Z = 1; V = 3,831.19 Den(Calc)= 2.52 |
![]() Trigonal - TrapezohedralH-M Symbol (3 2) Space Group: P 321 |
![]() By Intensity(I/Io): 3.72(1), 3.59(0.43), 3.81(0.42), |
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| Physical Properties of Franzinite![]() {0001} Distinct |
![]() Pearl white. |
![]() 2.49 |
![]() Transparent to Translucent |
![]() Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
![]() 5 - Apatite |
![]() Vitreous (Glassy) |
![]() white |
| Optical Properties of Franzinite![]() 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 ![]() Uniaxial (+), w=1.51, e=1.512, bire=0.0020. |
| Calculated Properties of Franzinite![]() Bulk Density (Electron Density)=2.49 gm/cc |
note: Specific Gravity of Franzinite =2.52 gm/cc. ![]() Fermion Index = 0.0075086691 |
Boson Index = 0.9924913309 ![]() PEFranzinite = 2.89 barns/electron |
U=PEFranzinite x relectron= 7.21 barns/cc. ![]() |
GRapi = 86.57 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Franzinite | Franzinite Classification![]() 76.02.05.06 (76)Tectosilicate Al-Si Framework |
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(76.02)Feldspathoids and related species |
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(76.02.05)Cancrinite group |
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![]() 09.FB.05 09 - SILICATES (Germanates) |
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09.F - Tektosilicates without Zeolitic H2O |
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09.FB -Tektosilicates with additional anions |
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| Other Franzinite Information![]() NAME( AntBidBlaNic2) PHYS. PROP.(AmMin, Vol 86) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() 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 Search for Franzinite using: Visit our Advertisers for Franzinite : A Bijoux Google Search for FranziniteAdam's Minerals Google Search for Franzinite Cape Minerals Google Search for Franzinite Dakota Matrix Minerals Google Search for Franzinite Excalibur Mineral Corp. Google Search for Franzinite Exceptional Minerals Google Search for Franzinite John Betts Fine Minerals Search for Franzinite McDougall Minerals Google Search for Franzinite Mineral News Website Link Rock and Mineral Shows Google Search for Franzinite Weinrich Minerals, Inc. Google Search for Franzinite Ask about Franzinite here : Print or Cut-and-Paste your Franzinite Specimen Label here :
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