Know all about Skarn and Mudstone properties here. All properties of rocks are important as they define the type of rock and its application. Skarn belongs to Metamorphic Rocks while Mudstone belongs to Sedimentary Rocks.Texture of Skarn is Earthy, Mud-rich, Rough whereas that of Mudstone is Clastic. Skarn appears Dull and Mudstone appears Rough and Dull. The luster of Skarn is waxy and dull while that of Mudstone is dull. Skarn is available in black, brown, colourless, green, grey, white colors whereas Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Skarn are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo) and that of Mudstone are creating artwork, pottery.