| Cebollite Mineral Data |
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- 78.1.1.1 Cebollite Ca5Al2(SiO4)3(OH)4 Unk Ortho
- VIII/C.03-10 Rankinite Ca3Si2O7 P 21/a 2/m
- VIII/C.03-20 Kilchoanite Ca3Si2O7 I2cm mm2
- VIII/C.03-30 Cebollite Ca5Al2(SiO4)3(OH)4 Unk Ortho
- VIII/C.03-58 Manganokukisvumite! Na6MnTi4Si8O28·4(H2O) Pccn 2/m 2/m 2/m
General Cebollite Information |
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 Chemical Formula: |
Ca5Al2(SiO4)3(OH)4 | ||
| Composition: |
Molecular Weight = 598.63 gm | ||
| Calcium 33.47 % Ca 46.84 % CaO | |||
| Aluminum 9.01 % Al 17.03 % Al2O3 | |||
| Silicon 14.07 % Si 30.11 % SiO2 | |||
| Hydrogen 0.67 % H 6.02 % H2O | |||
| Oxygen 42.76 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Ca5Al2(SiO4)3(OH)4 | ||
| Environment: |
Alteration product of melilite. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1914 | ||
| Locality: |
Cebolla Creek, Gunnison Co., Colorado Link to MinDat.org Location Data. | ||
| Name Origin: |
Named after its locality. | ||
Cebollite Image | |||
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Images:
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Cebollite Crystallography |
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| Crystal System: |
OrthorhombicSpace Group: Unk | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.73(1), 2.88(0.9), 2.59(0.7), | ||
Physical Properties of Cebollite |
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| Color: |
Colorless, Greenish gray, White, Light brown. | ||
| Density: |
2.96 | ||
| Diaphaniety: |
Subtranslucent to opaque | ||
| Habit: |
Fibrous - Crystals made up of fibers. | ||
| Hardness: |
5 - Apatite | ||
| Luminescence: |
Non-fluorescent. | ||
| Luster: |
Vitreous - Dull | ||
| Magnetism: |
Nonmagnetic | ||
| Streak: |
white | ||
Optical Properties of Cebollite |
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| Gladstone-Dale: |
CI meas= 0.053 (Good) - where the CI = (1-KPDmeas/KC) KPDmeas= 0.2053,KC= 0.2167 |
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| Optical Data: |
Biaxial (+), a=1.595, b=1.6, g=1.628, bire=0.0330 | ||
Calculated Properties of Cebollite |
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| Electron Density: |
relectron=2.97 gm/cc |
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| Fermion Index |
Fermion Index = 0.00723 Boson Index = 0.99277 |
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| Photoelectric: |
PECebollite = 4.90 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Cebollite is Not Radioactive |
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Cebollite Classification |
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| Dana Class: |
78.1.1.1 (78)Unclassified silicates | ||
| (78.1)possible nesosilicates | |||
| (78.1.1)Dana Group | |||
| Strunz Class: |
VIII/C.03-30 VIII - Silicates | ||
| VIII/C - Sorosilicates, with [Si2O7]6-, without anions unfamiliar to tetraheders | |||
| VIII/C.03 - Rankinite - Cebollite series | |||
Other Cebollite Information |
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| References: |
NAME( Ford32) PHYS. PROP.(Ford32) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Cebollite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Cebollite using: Visit our Advertisers for Cebollite : AA Mineral SpecimensB & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals The GeoZone Wrights Rock Shop Translate Cebollite Mineral Data : Ask about Cebollite here : Print or Cut-and-Paste your Cebollite Specimen Label here :
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