Know all about Picrite and Granulite properties here. All properties of rocks are important as they define the type of rock and its application. Picrite belongs to Igneous Rocks while Granulite belongs to Metamorphic Rocks.Texture of Picrite is Earthy, Rough whereas that of Granulite is Granoblastic. Picrite appears Rough and Shiny and Granulite appears Veined or Pebbled. The luster of Picrite is subvitreous to dull while that of Granulite is vitreous. Picrite and Granulite 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 Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones.