Know all about Granulite and Picrite properties here. All properties of rocks are important as they define the type of rock and its application. Granulite belongs to Metamorphic Rocks while Picrite belongs to Igneous Rocks.Texture of Granulite is Granoblastic whereas that of Picrite is Earthy, Rough. Granulite appears Veined or Pebbled and Picrite appears Rough and Shiny. The luster of Granulite is vitreous while that of Picrite is subvitreous to dull. Granulite is available in black, brown colors whereas Picrite is available in black, brown, colourless, green, grey, pink, white, yellow colors. The commercial uses of Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones and that of Picrite are as a feed additive for livestock, as armour rock for sea walls, metallurgical flux, pottery, source of magnesia (mgo).