Know all about Greywacke and Jaspillite properties here. All properties of rocks are important as they define the type of rock and its application. Greywacke and Jaspillite belong to Sedimentary Rocks.Texture of Greywacke is Clastic whereas that of Jaspillite is Banded, Trellis. Greywacke appears Dull and Jaspillite appears Banded and Glassy. The luster of Greywacke is dull while that of Jaspillite is earthy. 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 Jaspillite is available in red, reddish brown colors. The commercial uses of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones and that of Jaspillite are creating artwork, jewelry.