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