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Potassium Feldspar: SiO2 (70.1%), Al2O3 (11.6%), K2O (7.35%), Na2O (1.77%), MnO (0.014%), TiO2 (0.133%), CaO (1.75%), MgO (0.7%), SO3 (1.7%), L.O.l (3.03)
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