Gismondine Mineral Data + 
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- 77.1.3.1 Gismondine Ca2Al4Si4O16·9(H2O) P 21/c 2/m
- 77.1.3.2 Amicite K2Na2Al4Si4O16·5(H2O) I2 2
- 77.1.3.3 Garronite Na2Ca5Al12Si20O64·27(H2O) I 41/a 4/m
- 77.1.3.4 Gobbinsite (Na2,Ca)2K2Al6Si10O32·12(H2O) P mn21 mm2
- 77.1.3.5 Harmotome (Ba,Na,K)1-2(Si,Al)8O16·6(H2O) P 21/m 2/m
- 77.1.3.6 Phillipsite-Na (Na,K,Ca)1-2(Si,Al)8O16·6(H2O) P 21/m 2/m
- 77.1.3.6a Phillipsite-Ca! (Ca,K,Na)1-2(Si,Al)8O16·6(H2O) P 21/m 2/m
- 77.1.3.6b Phillipsite-K! (K,Na,Ca)1-2(Si,Al)8O16·6(H2O) P 21/m 2/m
- 77.1.3.8 Perlialite K8Tl4Al12Si24O72·20(H2O) P 6/mmm 6/m 2/m 2/m
- 77.1.3.9 Paulingite-K (K2,Ca,Na2,Ba)5Al10Si35O90·45(H2O) Im3m 4/m 3 2/m
- 77.1.3.9a Paulingite-Na! (Na2,K2,Ca,Ba)5Al10Si35O90·45(H2O) Im3m 4/m 3 2/m
- 77.1.3.9b Paulingite-Ca! (Ca,K,Na,Ba)5[Al10Si35O84]·34(H2O) Im3m 4/m 3 2/m
- 77.1.3.10 Mazzite K2CaMg2(Al,Si)36O72·28(H2O) P 63/mmc 6/m 2/m 2/m
- 77.1.3.11 Merlinoite (K,Ca,Na,Ba)7Si23Al9O64·23(H2O) I mmm 2/m 2/m 2/m
- 77.1.3.12 Montesommaite (K,Na)9Al9Si23O64·10(H2O) F dd2 mm2
- VIII/J.25-10 Amicite K2Na2Al4Si4O16·5(H2O) I2 2
- VIII/J.25-20 Gismondine Ca2Al4Si4O16·9(H2O) P 21/c 2/m
- VIII/J.25-30 Gobbinsite (Na2,Ca)2K2Al6Si10O32·12(H2O) P mn21 mm2
- VIII/J.25-40 Garronite Na2Ca5Al12Si20O64·27(H2O) I 41/a 4/m
- VIII/J.25-50 Phillipsite-Na (Na,K,Ca)1-2(Si,Al)8O16·6(H2O) P 21/m 2/m
- VIII/J.25-55 Phillipsite-K! (K,Na,Ca)1-2(Si,Al)8O16·6(H2O) P 21/m 2/m
- VIII/J.25-60 Phillipsite-Ca! (Ca,K,Na)1-2(Si,Al)8O16·6(H2O) P 21/m 2/m
- VIII/J.25-70 Harmotome (Ba,Na,K)1-2(Si,Al)8O16·6(H2O) P 21/m 2/m
- VIII/J.25-75 Montesommaite (K,Na)9Al9Si23O64·10(H2O) F dd2 mm2
- VIII/J.25-80 Merlinoite (K,Ca,Na,Ba)7Si23Al9O64·23(H2O) I mmm 2/m 2/m 2/m
- VIII/J.25-90 Yugawaralite CaAl2Si6O16·4(H2O) Pc m
General Gismondine Information |
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 Chemical Formula: |
Ca2Al4Si4O16·9(H2O) | ||
| Composition: |
Molecular Weight = 718.55 gm | ||
| Calcium 11.16 % Ca 15.61 % CaO | |||
| Aluminum 15.02 % Al 28.38 % Al2O3 | |||
| Silicon 15.63 % Si 33.45 % SiO2 | |||
| Hydrogen 2.52 % H 22.56 % H2O | |||
| Oxygen 55.67 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Ca2Al4Si4O16·9(H2O) | ||
| Environment: |
Alteration product of plagioclase. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1817 | ||
| Locality: |
Capo di Bove, near Rome, Italy. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named after the Italian mineralogist, Carlo Giuseppe Gismondi (1762-1824), lecturer in Mineralogy in Rome. | ||
| Synonym: |
Abrazite | ||
| Aricite | |||
| Gismondite | |||
| ICSD 61439 | |||
| PDF 39-1373 | |||
| Zeagonite | |||
Gismondine Image | |||
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Images:
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Gismondine Crystallography |
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| Axial Ratios: |
a:b:c =0.9441:1:0.9271 | ||
| Cell Dimensions: |
a = 10.023, b = 10.616, c = 9.843, Z = 2; beta = 92.42° V = 1,046.40 Den(Calc)= 2.28 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.71(1), 3.19(0.7), 4.25(0.7), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Gismondine |
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| Cleavage: |
[101] Imperfect | ||
| Color: |
Blue white, Colorless, Gray, White, Red. | ||
| Density: |
2.26 | ||
| Diaphaniety: |
Transparent to translucent | ||
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). | ||
| Habit: |
Globular - Spherical, or nearly so, rounded forms (e.g. wavellite). | ||
| Habit: |
Pseudo Tetragonal - Crystals show a tetragonal shape. | ||
| Hardness: |
4-5 - Fluorite-Apatite | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
white | ||
Optical Properties of Gismondine |
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| Gladstone-Dale: |
CI meas= -0.003 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.006 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2364,KPDmeas= 0.2385,KC= 0.2378 |
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| Optical Data: |
Biaxial (-), a=1.536, b=1.539, g=1.542, bire=0.0060, 2V(Calc)=88, 2V(Meas)=84. | ||
Calculated Properties of Gismondine |
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| Electron Density: |
relectron=2.30 gm/cc |
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| Fermion Index |
Fermion Index = 0.00772 Boson Index = 0.99228 |
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| Photoelectric: |
PEGismondine = 2.44 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Gismondine is Not Radioactive |
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Gismondine Classification |
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| Dana Class: |
77.1.3.1 (77)Tectosilicate Zeolite group | ||
| (77.1)true zeolites | |||
| (77.1.3)Gismondine and related species | |||
| Strunz Class: |
VIII/J.25-20 VIII - Silicates | ||
| VIII/J - Tectosilicates (network), with zeolite-structure, Bladed Zeolites | |||
| VIII/J.25 - Zeolite group, Amicite - Phillipsite - Yugawaralite series | |||
Other Gismondine Information |
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| References: |
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) | ||
| See Also: |
Links to other databases for Gismondine : 1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 -Athena 5 - Crocoite.com Mineral Locations 6 - EUROmin Project 7 -Google Images 8 -Google Scholar 9 -Handbook of Mineralogy (MinSocAm) 10 -Handbook of Mineralogy (UofA) 11 -MinDAT 12 -MinMax(Deutsch) 13 -MinMax(English) 14 -Mineralienatlas (Deutsch) 15 -QUT Mineral Atlas 16 - WWW-MINCRYST 17 -Zeolite Database by Bruno Herreros 18 -École des Mines de Paris Search for Gismondine using: Visit our Advertisers for Gismondine : Translate Gismondine Mineral Data : Ask about Gismondine here : Print or Cut-and-Paste your Gismondine Specimen Label here :
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