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Grossmanite Mineral Data

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General Grossmanite Information

Help on Chemical  Formula: Chemical Formula: CaTi+++AlSiO6
Help on Composition: Composition: Molecular Weight = 239.02 gm
   Calcium   16.77 %  Ca   23.46 % CaO
   Titanium  20.03 %  Ti   30.07 % Ti2O3
   Aluminum  11.29 %  Al   21.33 % Al2O3
   Silicon   11.75 %  Si   25.14 % SiO2
   Oxygen    40.16 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaTiAlSiO6
Help on IMA Status: IMA Status: Proposed IMA 2009
Help on Locality: Locality: Allende meteorite. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Commission on New Minerals, Nomenclature and Classification (CNMNC)
Help on Synonym: Synonym: IMA2008-042a
 

Grossmanite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0996:1:0.6059
Help on Cell Dimensions: Cell Dimensions: a = 9.884, b = 8.988, c = 5.446, Z = 4; beta = 105.86° V = 465.39 Den(Calc)= 3.41
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.996(1), 2.535(0.47), 2.581(0.42),2.964(0.31), 2.5605(0.28), 2.909(0.25), 1.431(0.19), 2.13(0.19),
 

Optical Properties of Grossmanite

Help on Optical Data: Optical Data: NCalc= 1.77 - from Gladstone-Dale relationship (KC = 0.226) where Ncalc=Dcalc*KC+1
 

Calculated Properties of Grossmanite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.34 gm/cc
note: Specific Gravity of Grossmanite =3.41 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEGrossmanite = 6.13 barns/electron
U=PEGrossmanite x rElectron Density= 20.46 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Grossmanite is Not Radioactive
 

Grossmanite Classification

Help on  Dana Class: Dana Class: 65.00.00.00 (65)Inosilicate Minerals
  (65.00)Without Dana Classification Numbers
  (65.00.00)Silicate, Unclassified
 
65.00.00.00 Ashcroftine-(Ce)* K5Na5(Ce,Ca)12Si28O70(OH)2(CO3)8•8(H2O) I 4/mmm 4/m 2/m 2/m
 
65.00.00.00 Brokenhillite* (Mn,Fe)32[Si24O60]OH29Cl11 P 63mc 6mm
 
65.00.00.00 Grossmanite CaTiAlSiO6 C 2/m 2/m
 
65.00.00.00 Hypersthene? (Mg,Fe)2Si2O6 2/m 2/m 2/m
 
65.00.00.00 IMA2007-015 K(CaNa)(Fe3Al2)(Si6Al2)O22(OH)2 C 2/m 2/m
 
65.00.00.00 IMA2008-070 NaLi2(Fe2Al2Li)(Si6Al2)O22F2 C 2/m 2/m
 
65.00.00.00 IMA2009-010 [Ba6(PO4)2(CO3)][Fe7(OH)4Fe2O2(SiO3)8] P1 1
 
65.00.00.00 IMA2009-012 NaNa2(Mg2Al2Li)Si8O22F2 C 2/m 2/m
 
65.00.00.00 Kushiroite CaAl2SiO6 C 2/c 2/m
 
65.00.00.00 Plumalsite* Pb4Al2(SiO3)7(?) Unk Ortho
Help on  Strunz Class: Strunz Class: 09.DX.00 09 - SILICATES (Germanates)
  09.D - Unclassified Strunz Inosilicates
  09.DX -Silicate, Unclassified
 
09.DX.00 Hypersthene? (Mg,Fe)2Si2O6 2/m 2/m 2/m
 
09.DX.00 Plumalsite* Pb4Al2(SiO3)7(?) Unk Ortho
 
09.DX.00 IMA2008-070 NaLi2(Fe2Al2Li)(Si6Al2)O22F2 C 2/m 2/m
 
09.DX.00 IMA2007-015 K(CaNa)(Fe3Al2)(Si6Al2)O22(OH)2 C 2/m 2/m
 
09.DX.00 Tanohataite! LiMn2Si3O8(OH) P1 1
 
09.DX.00 Punkaruaivite! Li{Ti2(OH)2[Si4O11(OH)]}•H2O C 2/c 2/m
 
09.DX.00 Yegorovite! Na4[Si2O4(OH)2]2•7H2O P 21/c 2/m
 
09.DX.00 Kushiroite CaAl2SiO6 C 2/c 2/m
 
09.DX.00 Grossmanite CaTiAlSiO6 C 2/m 2/m
 
09.DX.00 IMA2009-009 KNa2Li(Mg,Fe)2Ti2Si8O24 C 2/m 2/m
 
09.DX.00 IMA2009-010 [Ba6(PO4)2(CO3)][Fe7(OH)4Fe2O2(SiO3)8] P1 1
 
09.DX.00 IMA2009-012 NaNa2(Mg2Al2Li)Si8O22F2 C 2/m 2/m
 

Other Grossmanite Information

Help on See Also: See Also: Links to other databases for Grossmanite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Grossmanite

CaTi+++AlSiO6
Dana No: 65.00.00.00 Strunz No: 09.DX.00
Locality:

 

Notes:

 

 
   
 


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