Mineralogy Database

Sugilite Mineral Data

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General Sugilite Information

Help on Chemical Formula: Chemical Formula: KNa2(Fe+++,Mn+++,Al)2Li3Si12O30
Help on Composition: Composition: Molecular Weight = 1,041.66 gm
   Potassium   3.04 %  K     3.66 % K2O
   Sodium      1.83 %  Na    2.47 % Na2O
   Lithium     1.41 %  Li    3.04 % Li2O
   Titanium    0.28 %  Ti    0.46 % TiO2
   Manganese   3.11 %  Mn    4.47 % Mn2O3
   Aluminum    1.53 %  Al    2.89 % Al2O3
   Iron        8.79 %  Fe   12.57 % Fe2O3
   Silicon    32.35 %  Si   69.22 % SiO2
   Hydrogen    0.18 %  H     1.57 % H2O
   Oxygen     47.48 %  O
             ______        ______ 
             100.00 %      100.35 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K0.81Na0.19(H2O)0.91Na0.64Fe3+1.32Mn3+0.59Ti0.06Fe3+0.03Li2.12Al0.59Fe3+0.29Si12O30
Help on Environment: Environment: Stratabound, metamorphosed manganese deposits and peralkaline ignous rocks.
Help on IMA Status: IMA Status: Approved IMA 1976
Help on Locality: Locality: Iwagi Islet, Ehime Prefecture, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Ken-ichi Sugi (1901-1948), Japanese petrologist
Help on Name Pronunciation: Name Pronunciation: Sugilite Say SUGILITE
Help on Synonym: Synonym: ICSD 202624
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