Know all about Breccia and Greywacke properties here. All properties of rocks are important as they define the type of rock and its application. Breccia and Greywacke belong to Sedimentary Rocks.Texture of Breccia is Brecciated, Clastic whereas that of Greywacke is Clastic. Breccia appears Layered, Banded, Veined and Shiny and Greywacke appears Dull. The luster of Breccia is dull to pearly while that of Greywacke is dull. Breccia is available in beige, black, blue, brown, buff, green, grey, orange, pink, purple, red, rust, 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 Breccia are creating artwork, gemstone, jewelry and that of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.