Know all about Greywacke and Carbonatite properties here. All properties of rocks are important as they define the type of rock and its application. Greywacke belongs to Sedimentary Rocks while Carbonatite belongs to Igneous Rocks.Texture of Greywacke is Clastic whereas that of Carbonatite is Granular, Poikiloblastic. Greywacke appears Dull and Carbonatite appears Dull, Banded and Foilated. The luster of Greywacke is dull while that of Carbonatite is subvitreous to dull. Greywacke and Carbonatite are 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 Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones and that of Carbonatite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux.