Know all about Arkose and Greywacke properties here. All properties of rocks are important as they define the type of rock and its application. Arkose and Greywacke belong to Sedimentary Rocks.Texture of Arkose is Clastic whereas that of Greywacke is Clastic. Arkose appears Rough and Dull and Greywacke appears Dull. The luster of Arkose and Greywacke is dull. Arkose is available in reddish 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 Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones and that of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.