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