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