Mineralogy Database

Lingunite Mineral Data

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General Lingunite Information

Help on Chemical Formula: Chemical Formula: (Na,Ca)AlSi3O8
Help on Composition: Composition: Molecular Weight = 270.77 gm
   Sodium     4.25 %  Na    5.72 % Na2O
   Calcium    7.40 %  Ca   10.36 % CaO
   Aluminum   9.96 %  Al   18.83 % Al2O3
   Silicon   31.12 %  Si   66.57 % SiO2
   Oxygen    47.27 %  O
            ______        ______ 
            100.00 %      101.48 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.5Ca0.5AlSi3O8
Help on Environment: Environment: Intimately intergrown with feldspathic glass in shock-induced melt veins. Feldspar group high-pressure polymorph of plagioclase believed present below 400 km in the earth.
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Sixiangkou L6 chondrite. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Liu Lin-gun (1942-), Chinese mineralogist at the National Taiwan University who first synthesised the mineral.
Help on Synonym: Synonym: IMA2004-054
  NaAlSi3O8-hollandite