Odinite Mineral Data

General Odinite Information

Chemical Formula: (Fe+++,Mg,Al,Fe++,Ti,Mn)2.5(Si,Al)2O5(OH)4 Composition: Molecular Weight = 300.61 gm    Magnesium   5.66 %  Mg    9.39 % MgO    Titanium    1.59 %  Ti    2.66 % TiO₂    Manganese   1.83 %  Mn    2.36 % MnO    Aluminum    6.28 %  Al   11.87 % Al₂O₃    Iron       18.58 %  Fe    7.17 % FeO / 18.59 % Fe₂O₃    Silicon    16.82 %  Si   35.98 % SiO₂    Hydrogen    1.34 %  H    11.99 % H₂O    Oxygen     47.90 %  O              ______        ______               100.00 %      100.00 % = TOTAL OXIDE Empirical Formula: Fe³⁺_0.7Mg_0.7Al_0.5Fe²⁺_0.3Ti_0.1Mn²⁺_0.1Si_1.8Al_0.2O₅(OH)₄ Environment: Formed in marine waters, a minor component of green clay infillings or replacements of microtests, bioclasts, fecal pellets, of mineral debris on shallow marine shelfs and lagoonal areas in tropical latitudes. IMA Status: Approved IMA 1988 Locality: Minor component in sediments of the present day sea bottoms in lower latitudes near South America and Africa. Link to MinDat.org Location Data. Name Origin: Named for Gilles Serge Odin, clay mineralogist of the University P. And M. Curie, Paris, France. Name Pronunciation: Odinite  

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Odinite Crystallography

Axial Ratios: a:b:c =0.5761:1:0.7895 Cell Dimensions: a = 5.373, b = 9.326, c = 7.363, Z = 2; beta = 104° V = 357.99 Den(Calc)= 2.79 Crystal System: Monoclinic - DomaticH-M Symbol (m) Space Group: Cm X Ray Diffraction: By Intensity(I/I_o): 7.15(1), 3.58(0.85), 1.552(0.65),  

Physical Properties of Odinite

Color: Green, Dark green. Density: 2.6 Diaphaneity: Translucent to Opaque Habit: Cryptocrystalline - Occurs as crystals too small to distinguish with the naked eye. Hardness: 2.5 - Finger Nail Luster: Silky Streak: gray green  

Optical Properties of Odinite

Optical Data: Biaxial (?)   NCalc= 1.69 - from Gladstone-Dale relationship (KC = 0.2461) where Ncalc=Dcalc*KC+1
NCalc= 1.64 - from Gladstone-Dale relationship (KC = 0.2461) where Ncalc=Dmeas*KC+1  

Calculated Properties of Odinite

Electron Density: Bulk Density (Electron Density)=2.77 gm/cc
note: Specific Gravity of Odinite =2.79 gm/cc.
Fermion Index: Fermion Index = 0.01
Boson Index = 0.99 Photoelectric: PE_Odinite = 7.14 barns/electron
U=PE_Odinite x rElectron Density= 19.81 barns/cc.
Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Odinite is Not Radioactive  

Odinite Classification

Dana Class: 71.01.01.05 (71)Phyllosilicate Sheets of Six-Membered Rings   (71.01)with 1:1 layers   (71.01.01)Kaolinite group  

71.01.01.01 Dickite Al2Si2O5(OH)4 Cc m

 

71.01.01.02 Kaolinite Al2Si2O5(OH)4 P1 1

 

71.01.01.03 Nacrite Al2Si2O5(OH)4 Cc m

 

71.01.01.04 Halloysite Al2Si2O5(OH)4 Cc m

 

71.01.01.04a Endellite? Al2Si2O5(OH)4•2(H2O) Cc m

 

71.01.01.05 Odinite (Fe,Mg,Al,Fe,Ti,Mn)2.5(Si,Al)2O5(OH)4 Cm m

Strunz Class: 09.EC.55 09 - SILICATES (Germanates)   09.E - Phyllosilicates   09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets  

09.EC.55 Donbassite Al2[Al2.33][Si3AlO10](OH)8 C 2/m 2/m

 

09.EC.55 Baileychlore (Zn,Al,[])3[Fe2Al][Si3AlO10](OH)8 C1,C1 Tri

 

09.EC.55 Clinochlore (Mg,Fe)5Al(Si3Al)O10(OH)8 C 2/m 2/m

 

09.EC.55 Cookeite LiAl4(Si3Al)O10(OH)8 P 2₁/a 2/m

 

09.EC.55 Chamosite (Fe,Mg,Fe)5Al(Si3Al)O10(OH,O)8 C 2/m 2/m

 

09.EC.55 Franklinfurnaceite Ca2(Fe,Al)MnMn3Zn2Si2O10(OH)8 C 2 2

 

09.EC.55 Nimite (Ni,Mg,Fe)5Al(Si3Al)O10(OH)8 C 2/m 2/m

 

09.EC.55 Gonyerite Mn3[Mn3Fe][(Si,Fe)4O10](OH,O)8 pseudo-HEX Ortho

 

09.EC.55 Odinite (Fe,Mg,Al,Fe,Ti,Mn)2.5(Si,Al)2O5(OH)4 Cm m

 

09.EC.55 Orthochamosite (Fe,Mg,Fe)5Al(Si3Al)O10(OH,O)8 C3m-pseudoHEX Ortho

 

09.EC.55 Pennantite Mn5Al(Si3Al)O10(OH)8 C 2/m 2/m

 

09.EC.55 Sudoite Mg2(Al,Fe)3Si3AlO10(OH)8 C 2/m 2/m

 

09.EC.55 Glagolevite! NaMg6[Si3AlO10](OH,O)8•H2O C1 1

 

09.EC.55 Borocookeite! Li(13x)Al(4-x)(BSi3)O10(OH,F)8[x=0-0.33] pseudo C 2/m 2/m

 

Other Odinite Information

References: NAME( AntBidBlaNic2) PHYS. PROP.(Am.Min.,Vol.81,1996) See Also: Links to other databases for Odinite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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