Characterization and Beneficiation of an Egyptian Nepheline .Dec 15, 2013 . Nepheline syenite ore is an essential constituent in ceramics and glass raw . The natural nepheline syenite rocks contain some undesired minerals, . The ore is exceptionally hard, with high crushing strength of 875 kg/cm2,.syenite rock ceramics crusher,Syenite | rock | BritannicaSyenite, any of a class of intrusive igneous rocks essentially composed of an alkali feldspar and a ferromagnesian mineral. A special group of alkali syenites is.Evaluation of granitic rocks as feldspar source - Taylor & Francis .ceramics, sodic feldspar is particularly useful in ceramic body and glaze. Potassic . itoid and alkaline intrusive rocks, including syenites, leucocratic granites.
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