Know all about Diorite and Greywacke properties here. All properties of rocks are important as they define the type of rock and its application. Diorite belongs to Igneous Rocks while Greywacke belongs to Sedimentary Rocks.Texture of Diorite is Phaneritic whereas that of Greywacke is Clastic. Diorite appears Shiny and Greywacke appears Dull. The luster of Diorite is shiny while that of Greywacke is dull. Diorite is available in black, brown, light to dark grey, white 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 Diorite are creating artwork, curling and that of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.