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