Know all about Nepheline Syenite and Slate properties here. All properties of rocks are important as they define the type of rock and its application. Nepheline Syenite belongs to Igneous Rocks while Slate belongs to Metamorphic Rocks.Texture of Nepheline Syenite is Granular whereas that of Slate is Foliated. Nepheline Syenite appears Banded and Foilated and Slate appears Dull. The luster of Nepheline Syenite is greasy to dull while that of Slate is dull. Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white colors whereas Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors. The commercial uses of Nepheline Syenite are cemetery markers, creating artwork and that of Slate are blackboards, commemorative tablets, laboratory bench tops, standard material for the bed of billiard table, standard material for the beds of pool and snooker table, tombstones, used in aquariums, writing slates.