Know all about Shale and Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Shale belongs to Sedimentary Rocks while Syenite belongs to Igneous Rocks.Texture of Shale is Clastic, Splintery whereas that of Syenite is Earthy. Shale appears Muddy and Syenite appears Banded and Foilated. The luster of Shale is dull while that of Syenite is subvitreous to dull. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Syenite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Shale are creating artwork, pottery and that of Syenite are cemetery markers, creating artwork.