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