Know all about Mudstone and Scoria properties here. All properties of rocks are important as they define the type of rock and its application. Mudstone belongs to Sedimentary Rocks while Scoria belongs to Igneous Rocks.Texture of Mudstone is Clastic whereas that of Scoria is Vesicular. Mudstone appears Rough and Dull and Scoria appears Glassy and Vesicular. The luster of Mudstone is dull while that of Scoria is subvitreous to dull. Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors whereas Scoria is available in black, brown, dark grey to black, red colors. The commercial uses of Mudstone are creating artwork, pottery and that of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills.