Know all about Oolite and Greywacke properties here. All properties of rocks are important as they define the type of rock and its application. Oolite and Greywacke belong to Sedimentary Rocks.Texture of Oolite is Clastic or Non-Clastic whereas that of Greywacke is Clastic. Oolite appears Rounded and Rough and Greywacke appears Dull. The luster of Oolite is pearly to shiny while that of Greywacke is dull. Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow 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 Oolite are creating artwork, jewelry, used in aquariums and that of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.