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Eitelite Mineral Data

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General Eitelite Information

Help on Chemical  Formula: Chemical Formula: Na2Mg(CO3)2
Help on Composition: Composition: Molecular Weight = 190.30 gm
   Sodium     24.16 %  Na   32.57 % Na2O
   Magnesium  12.77 %  Mg   21.18 % MgO
   Carbon     12.62 %  C    46.25 % CO2
   Oxygen     50.44 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2Mg(CO3)2
Help on Environment: Environment: Authigenic mineral in dolomitic shale and bituminous marlstone.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1955
Help on Locality: Locality: drill core in the Kermit Poulson No. 1 well, Green River Formation, in Duchesne Co., Wyoming, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Wilhelm Hermann Julius Eitel (1891-1979), Director of the Institute of Silicate Research, University of Toledo, Toledo, Ohio, USA, who synthesized the compound.
Help on Name Pronunciation: Name Pronunciation: Eitelite Say EITELITE
Help on Synonym: Synonym: ICSD 100482
  PDF 24-1227

Eitelite Image

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Comments: Pale yellow crystalline eitelite.
Location: Mapco Shrine Hospital Well #1 drill core, Green River Formation, Duchesne County, Utah, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Eitelite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:3.31748
Help on Cell Dimensions: Cell Dimensions: a = 4.9423, c = 16.396, Z = 3; V = 346.84 Den(Calc)= 2.73
Help on Crystal System: Crystal System: Trigonal - Rhombohedral H-M Symbol ( 3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.602(1), 2.469(0.25), 2.731(0.25),

Physical Properties of Eitelite

Help on Cleavage: Cleavage: {0001} Distinct
Help on Color: Color: Colorless, White.
Help on Density: Density: 2.737
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Eitelite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.045 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.042 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1933,KPDmeas= 0.1928,KC= 0.2018
Ncalc = 1.55
Help on Optical Data: Optical Data: Uniaxial (-), e=1.4502, w=1.6052, bire=0.1550.

Calculated Properties of Eitelite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.70 gm/cc
note: Specific Gravity of Eitelite =2.73 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEEitelite = 0.82 barns/electron
U=PEEitelite x rElectron Density= 2.21 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Eitelite is Not Radioactive

Eitelite Classification

Help on  Dana Class: Dana Class: (14)Anhydrous Carbonates
  (14.03)with Compound Formula A+2 B++ (CO3)2
  (14.03.02)Dana Group Eitelite Na2Mg(CO3)2 R 3 3
Help on  Strunz Class: Strunz Class: 05.AC.05 05 - CARBONATES (NITRATES)
  05.A - Carbonates without additional anions, without H2O
  05.AC -Alkali and alkali-earth carbonates
05.AC.05 Eitelite Na2Mg(CO3)2 R 3 3

Other Eitelite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Eitelite :
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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Dana No: Strunz No: 05.AC.05





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