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Cebollite Mineral Data

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General Cebollite Information

Help on Chemical  Formula: Chemical Formula: Ca5Al2(SiO4)3(OH)4
Help on Composition: 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
Help on Empirical Formula: Empirical Formula: Ca5Al2(SiO4)3(OH)4
Help on Environment: Environment: Alteration product of melilite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1914
Help on Locality: Locality: Cebolla Creek, Gunnison Co., Colorado Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
 

Cebollite Image

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  Cebollite

Comments: Green to white fibrous coating of cebollite on granular iron stained quartz.
Location: Cebola Creek, Gunnison County, Colorado, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Cebollite Crystallography

Help on Crystal System: Crystal System: Orthorhombic Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.73(1), 2.88(0.9), 2.59(0.7),
 

Physical Properties of Cebollite

Help on Color: Color: Colorless, Greenish gray, White, Light brown.
Help on Density: Density: 2.96
Help on Diaphaneity: Diaphaneity: Subtranslucent to opaque
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Hardness: Hardness: 5 - Apatite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous - Dull
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: white
 

Optical Properties of Cebollite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.053 (Good) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2053,KC= 0.2167
Ncalc = 1.64
Help on Optical Data: Optical Data: Biaxial (+), a=1.595, b=1.6, g=1.628, bire=0.0330
 

Calculated Properties of Cebollite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.97 gm/cc
note: Specific Gravity of Cebollite =2.96 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0072311321
Boson Index = 0.9927688679
Help on Photoelectric: Photoelectric: PECebollite = 4.90 barns/electron
U=PECebollite x rElectron Density= 14.55 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cebollite is Not Radioactive
 

Cebollite Classification

Help on  Dana Class: Dana Class: 78.01.01.01 (78)Unclassified silicates
  (78.01)possible nesosilicates
  (78.01.01)Dana Group
 
78.01.01.01 Cebollite Ca5Al2(SiO4)3(OH)4 Unk Ortho
Help on  Strunz Class: Strunz Class: 09.BB.10 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BB -Si2O7 groups, without non-tetrahedral anions;
 
09.BB.10 Akermanite Ca2MgSi2O7 P 421m 4 2m
 
09.BB.10 Cebollite Ca5Al2(SiO4)3(OH)4 Unk Ortho
 
09.BB.10 Gugiaite Ca2BeSi2O7 P 421m 4 2m
 
09.BB.10 Gehlenite Ca2Al(AlSi)O7 P 421m 4 2m
 
09.BB.10 Jeffreyite (Ca,Na)2(Be,Al)Si2(O,OH)7 C 2221 2 2 2
 
09.BB.10 Hardystonite Ca2ZnSi2O7 P 421m 4 2m
 
09.BB.10 Melilite (Ca,Na)2(Al,Mg,Fe)(Si,Al)2O7 P 421m 4 2m
 
09.BB.10 Okayamalite! Ca2B2SiO7 P 421m 4 2m
 

Other Cebollite Information

Help on References: References: NAME( Ford32) PHYS. PROP.(Ford32) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: 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 - 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 Cebollite Specimen Label here :

Cebollite

Ca5Al2(SiO4)3(OH)4
Dana No: 78.01.01.01 Strunz No: 09.BB.10
Locality:

 

Notes:

 

 
   
 


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