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Chelyabinskite Mineral Data

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General Chelyabinskite Information

Help on Chemical  Formula: Chemical Formula: (Ca,Mg)3Si(OH)6(SO4,CO3)2•9(H2O)
Help on Composition: Composition: Molecular Weight = 574.77 gm
   Calcium    15.69 %  Ca   21.95 % CaO
   Magnesium   3.17 %  Mg    5.26 % MgO
   Silicon     4.89 %  Si   10.45 % SiO2
   Hydrogen    4.21 %  H    37.61 % H2O
   Carbon      1.04 %  C     3.83 % CO2
   Sulfur      8.37 %  S    20.89 % SO3
   Oxygen     62.63 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2.25Mg0.75Si(OH)6(SO4)1.5(CO3)0.5•9(H2O)
Help on IMA Status: IMA Status: Not Approved IMA
Help on Locality: Locality: Link to MinDat.org Location Data.
 

Chelyabinskite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9082:1:1.0726
Help on Cell Dimensions: Cell Dimensions: a = 19.01, b = 20.93, c = 22.45, Z = 18; V = 8,932.39 Den(Calc)= 1.92
Help on Crystal System: Crystal System: Orthorhombic Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.52(1), 9.86(1), 3.79(0.8),
 

Physical Properties of Chelyabinskite

Help on Color: Color: White.
Help on Density: Density: 1.908 - 1.912, Average = 1.91
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Silky
Help on Streak: Streak: white
 

Optical Properties of Chelyabinskite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.026 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2566,KPDmeas= 0.2579,KC= 0.2513
Ncalc = 1.48
Help on Optical Data: Optical Data: Biaxial (?), a=1.475, b=1.495, g=1.508, bire=0.0330, 2V(Calc)=76, 2V(Meas)=77.
 

Calculated Properties of Chelyabinskite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.00 gm/cc
note: Specific Gravity of Chelyabinskite =1.92 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0067147226
Boson Index = 0.9932852774
Help on Photoelectric: Photoelectric: PEChelyabinskite = 2.73 barns/electron
U=PEChelyabinskite x rElectron Density= 5.46 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chelyabinskite is Not Radioactive
 

Chelyabinskite Classification

Help on  Dana Class: Dana Class: 78.00.00.00 (78)Unclassified Silicate Minerals
  (78.00)Without Dana Classification Numbers
  (78.00.00)Unclassified Silicate
 
78.00.00.00 Almbosite? Fe5Fe4V4Si3O27 Ortho ? Ortho
 
78.00.00.00 Chelyabinskite* (Ca,Mg)3Si(OH)6(SO4,CO3)2•9(H2O) Unk Ortho
 
78.00.00.00 Cryptophyllite K2Ca[Si4O10]•5H2O P 21/n 2/m
 
78.00.00.00 IMA2007-041T Na2[Ti4O2(OH)2(SiO4)3]•6H2O R 3m 3m
 
78.00.00.00 IMA2009-001 Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)1.5 R 3 3
 
78.00.00.00 Iddingsite? MgO.Fe2O3.3SiO2•4(H2O) Ortho
 
78.00.00.00 Ivanyukite-Cu Cu[Ti4(OH)2O2(SiO4)3]•7H2O P 4 3m 4 3m
 
78.00.00.00 Ivanyukite-K K2[Ti4(OH)2O2(SiO4)3]•9H2O P 4 3m 4 3m
 
78.00.00.00 Ivanyukite-Na Na2[Ti4O2(OH)2(SiO4)3]•6H2O P 4 3m 4 3m
 
78.00.00.00 Plumbophyllite Pb2Si4O10•H2O P bcn 2/m 2/m 2/m
 
78.00.00.00 Sturtite? (Fe3)(Mn2,Ca,Mg)Si4O10(OH)3•10(H2O) None
Help on  Strunz Class: Strunz Class: 07.DG.45 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DG -With large and medium sized cations; with NO3, CO3, B(OH)4, SiO4 or IO3
 
07.DG.45 Chelyabinskite* (Ca,Mg)3Si(OH)6(SO4,CO3)2•9(H2O) Unk Ortho
 

Other Chelyabinskite Information

Help on References: References: PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19)
Help on See Also: See Also: Links to other databases for Chelyabinskite :
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 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Chelyabinskite

(Ca,Mg)3Si(OH)6(SO4,CO3)2•9(H2O)
Dana No: 78.00.00.00 Strunz No: 07.DG.45
Locality:

 

Notes:

 

 
   
 


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