Know all about Shale and Mugearite properties here. All properties of rocks are important as they define the type of rock and its application. Shale belongs to Sedimentary Rocks while Mugearite belongs to Igneous Rocks.Texture of Shale is Clastic, Splintery whereas that of Mugearite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Shale appears Muddy and Mugearite appears Dull and Soft. The luster of Shale is dull while that of Mugearite is not available. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Mugearite is available in black, brown, light to dark grey colors. The commercial uses of Shale and Mugearite are creating artwork, pottery.