Mineralogy Database

Mullite Mineral Data

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General Mullite Information

Help on Chemical  Formula: Chemical Formula: Al(4+2x)Si(2-2x)O(10-x) where x =0.17 to 0.59
Help on Composition: Composition: Molecular Weight = 319.54 gm
   Aluminum  38.00 %  Al   71.79 % Al2O3
   Silicon   13.18 %  Si   28.21 % SiO2
   Oxygen    48.82 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al4.5Si1.5O9.75
Help on Environment: Environment: Remelted Tertiary-aged clays.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1924
Help on Locality: Locality: Isle of Mull, Scotland, England. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Mullite Say MULLITE