Okhotskite-(Mg) Mineral Data

Okhotskite-(Mg) Mineral Data
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General Okhotskite-(Mg) Information

Help on Chemical Formula: Chemical Formula: Ca3(Mg,Mn++)(Mn+++,Al,Fe+++)(SiO4)(Si2O7)(OH)2•(H2O)
Help on Composition: Composition: Molecular Weight = 518.28 gm
   Calcium    14.69 %  Ca   20.56 % CaO
   Magnesium   3.28 %  Mg    5.44 % MgO
   Manganese  13.78 %  Mn    4.11 % MnO / 15.23 % Mn2O3
   Aluminum    2.60 %  Al    4.92 % Al2O3
   Iron        5.39 %  Fe    7.70 % Fe2O3
   Silicon    16.26 %  Si   34.78 % SiO2
   Hydrogen    0.78 %  H     6.95 % H2O
   Oxygen     43.22 %  O
             ______        ______ 
             100.00 %       99.69 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca1.9Mg0.7Mn2+0.3Mn3+Al0.5Fe3+0.5(SiO4)(Si2O7)(OH)2·(H2O)
Help on IMA Status: IMA Status: Not Approved IMA 1987
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in 1987 by Togari and Akasaka for the Sea of Okhotsk, along which the mine is located.
Help on Name Pronunciation: Name Pronunciation: Okhotskite-(Mg) + Pronunciation Say OKHOTSKITE-(MG)
 

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Okhotskite-(Mg) Crystallography
Help on Crystal System: Crystal System: Monoclinic
 

Optical Properties of Okhotskite-(Mg)

Help on Optical Data: Optical Data:
 

Calculated Properties of Okhotskite-(Mg)

Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEOkhotskite-(Mg) = 7.65 barns/electron
U=PEOkhotskite-(Mg) x rElectron Density= . barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Okhotskite-(Mg) is Not Radioactive
 

Okhotskite-(Mg) Classification
Help on Dana Class: Dana Class: 58.02.02.03 (58)Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups
  (58.02)with cations in [6] and higher coordination; single and double groups (n=1,2)
  (58.02.02)Pumpellyite group
 
58.02.02.01 Julgoldite-(Fe++) Ca2Fe(Fe,Al)2(SiO4)(Si2O7)(OH)2•(H2O) C 2/m 2/m
 
58.02.02.02 Julgoldite-(Fe+++) Ca2Fe(Fe,Al)2(SiO4)(Si2O7)(O,OH)2•(H2O) A2/m 2/m
 
58.02.02.03 Okhotskite-(Mg)* Ca3(Mg,Mn)(Mn,Al,Fe)(SiO4)(Si2O7)(OH)2•(H2O) Mono
 
58.02.02.04 Okhotskite-(Mn++) Ca2(Mn,Mg)(Mn,Al,Fe)Si3O10(OH)4 A2/m 2/m
 
58.02.02.05 Pumpellyite-(Fe++) Ca2Fe(Al,Fe)2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m
 
58.02.02.06 Pumpellyite-(Fe+++) Ca2FeAl2(SiO4)(Si2O7)(OH,O)2•(H2O) A2/m 2/m
 
58.02.02.07 Pumpellyite-(Mg) Ca2MgAl2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m
 
58.02.02.08 Pumpellyite-(Mn++) Ca2(Mn,Mg)(Al,Mn,Fe)2(SiO4)(Si2O7(OH)2•(H2O) A2/m 2/m
 
58.02.02.09 Shuiskite Ca2(Mg,Al)(Cr,Al)2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m
 
58.02.02.10 Poppiite! Ca2(V,Fe,Mg)(V,Al)2(Si,Al)3(O,OH)14 C 2/m 2/m
 
58.02.02.11 Pumpellyite-(Al)! Ca2(Al,Fe,Mg)Al2(SiO4)(Si2O7)(OH,O)2•H2O A2/m 2/m
Help on Strunz Class: Strunz Class: 09.BG.20 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BG -Sorosilicates with mixed SiO4 and Si2O7 groups;
 
09.BG.20 Julgoldite-(Fe++) Ca2Fe(Fe,Al)2(SiO4)(Si2O7)(OH)2•(H2O) C 2/m 2/m
 
09.BG.20 Julgoldite-(Fe+++) Ca2Fe(Fe,Al)2(SiO4)(Si2O7)(O,OH)2•(H2O) A2/m 2/m
 
09.BG.20 Pumpellyite-(Fe++) Ca2Fe(Al,Fe)2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m
 
09.BG.20 Okhotskite-(Mg)* Ca3(Mg,Mn)(Mn,Al,Fe)(SiO4)(Si2O7)(OH)2•(H2O) Mono
 
09.BG.20 Okhotskite-(Mn++) Ca2(Mn,Mg)(Mn,Al,Fe)Si3O10(OH)4 A2/m 2/m
 
09.BG.20 Pumpellyite-(Fe+++) Ca2FeAl2(SiO4)(Si2O7)(OH,O)2•(H2O) A2/m 2/m
 
09.BG.20 Pumpellyite-(Mg) Ca2MgAl2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m
 
09.BG.20 Pumpellyite-(Mn++) Ca2(Mn,Mg)(Al,Mn,Fe)2(SiO4)(Si2O7(OH)2•(H2O) A2/m 2/m
 
09.BG.20 Shuiskite Ca2(Mg,Al)(Cr,Al)2(SiO4)(Si2O7)(OH)2•(H2O) A2/m 2/m
 
09.BG.20 Pumpellyite-(Al)! Ca2(Al,Fe,Mg)Al2(SiO4)(Si2O7)(OH,O)2•H2O A2/m 2/m
 
09.BG.20 Poppiite! Ca2(V,Fe,Mg)(V,Al)2(Si,Al)3(O,OH)14 C 2/m 2/m
 

Other Okhotskite-(Mg) Information
Help on References: References: NAME( Dana8)
Help on See Also: See Also: Links to other databases for Okhotskite-(Mg) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

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Okhotskite-(Mg)

Ca3(Mg,Mn++)(Mn+++,Al,Fe+++)(SiO4)(Si2O7)(OH)2•(H2O)
Dana No: 58.02.02.03 Strunz No: 09.BG.20
Locality:

 

Notes: