Know all about Greywacke and Lherzolite properties here. All properties of rocks are important as they define the type of rock and its application. Greywacke belongs to Sedimentary Rocks while Lherzolite belongs to Igneous Rocks.Texture of Greywacke is Clastic whereas that of Lherzolite is Grenue. Greywacke appears Dull and Lherzolite appears Glassy, Vesicular and Foilated. The luster of Greywacke is dull while that of Lherzolite is subvitreous to dull. 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 Lherzolite is available in black, dark greenish - grey, green, pink, purple colors. The commercial uses of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones and that of Lherzolite are as armour rock for sea walls, source of magnesia (mgo), used in aquariums.