Know all about Shale and Adakite properties here. All properties of rocks are important as they define the type of rock and its application. Shale belongs to Sedimentary Rocks while Adakite belongs to Igneous Rocks.Texture of Shale is Clastic, Splintery whereas that of Adakite is Porphyritic. Shale appears Muddy and Adakite appears Dull and Soft. The luster of Shale is dull while that of Adakite is grainy, pearly and vitreous. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Adakite is available in black, brown, light to dark grey colors. The commercial uses of Shale are creating artwork, pottery and that of Adakite are commemorative tablets, pottery, used in aquariums.