Nepheline syenite

Nepheline syenite, Nepheline syenite: sodium-potassium alumino silicate, Nepheline syenite; sodium potassium aluminium silicate, Nepheline syenite; sodium potassium aluminium silicate, Minex 10, Nepheline syenite; sodium potassium aluminium silicate, Syenex 10, Nepheline syenite, low silica feldspar, Nepheline syenite, sodium-potassium alumina silicate, Nepheline syenite, Nepheline syenite, Nepheline syenite; sodium potassium aluminium silicate, Nepheline syenite, cont. SiO2 60.2% and Al2O3 23.5%, Nepheline syenite, Nepheline seyenite, median particle size=225µm, Nepheline syenite; sodium potassium aluminium silicate, Nepheline syenite, Finex 10, Finex 7