Know all about Picrite and Skarn properties here. All properties of rocks are important as they define the type of rock and its application. Picrite belongs to Igneous Rocks while Skarn belongs to Metamorphic Rocks.Texture of Picrite is Earthy, Rough whereas that of Skarn is Earthy, Mud-rich, Rough. Picrite appears Rough and Shiny and Skarn appears Dull. The luster of Picrite is subvitreous to dull while that of Skarn is waxy and dull. Picrite and Skarn are available in black, brown, colourless, green, grey, pink, white, yellow colors. The commercial uses of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo) and that of Skarn are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo).