Know all about Granulite and Greywacke properties here. All properties of rocks are important as they define the type of rock and its application. Granulite belongs to Metamorphic Rocks while Greywacke belongs to Sedimentary Rocks.Texture of Granulite is Granoblastic whereas that of Greywacke is Clastic. Granulite appears Veined or Pebbled and Greywacke appears Dull. The luster of Granulite is vitreous while that of Greywacke is dull. Granulite is available in black, brown colors whereas Greywacke is 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 Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones and that of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.