Know all about Greywacke and Boninite properties here. All properties of rocks are important as they define the type of rock and its application. Greywacke belongs to Sedimentary Rocks while Boninite belongs to Igneous Rocks.Texture of Greywacke is Clastic whereas that of Boninite is Aphanitic to Porphyritic. Greywacke appears Dull and Boninite appears Dull and Soft. The luster of Greywacke is dull while that of Boninite is vitreous. 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 Boninite is available in bluish - grey, brown, colourless, green, grey colors. The commercial uses of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones and that of Boninite are an oil and gas reservoir, cemetery markers, creating artwork, soil conditioner, source of magnesia (mgo).