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