Know all about Greywacke and Granodiorite properties here. All properties of rocks are important as they define the type of rock and its application. Greywacke belongs to Sedimentary Rocks while Granodiorite belongs to Igneous Rocks.Texture of Greywacke is Clastic whereas that of Granodiorite is Granular, Phaneritic. Greywacke appears Dull and Granodiorite appears Veined or Pebbled. The luster of Greywacke is dull while that of Granodiorite is grainy, pearly and vitreous. Greywacke is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors whereas Granodiorite is available in black, grey, orange, pink, white colors. The commercial uses of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones and that of Granodiorite are curling, gemstone, laboratory bench tops, tombstones.