Know all about Gritstone and Granulite properties here. All properties of rocks are important as they define the type of rock and its application. Gritstone belongs to Sedimentary Rocks while Granulite belongs to Metamorphic Rocks.Texture of Gritstone is Earthy whereas that of Granulite is Granoblastic. Gritstone appears Layered and Foliated and Granulite appears Veined or Pebbled. The luster of Gritstone is dull while that of Granulite is vitreous. Gritstone and Granulite are available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Gritstone are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo), tombstones and that of Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones.