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