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