Know all about Sovite and Greywacke properties here. All properties of rocks are important as they define the type of rock and its application. Sovite belongs to Igneous Rocks while Greywacke belongs to Sedimentary Rocks.Texture of Sovite is Granular, Poikiloblastic whereas that of Greywacke is Clastic. Sovite appears Dull, Banded and Foilated and Greywacke appears Dull. The luster of Sovite is subvitreous to dull while that of Greywacke is dull. Sovite is available in black, brown, colourless, green, grey, pink, white 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 Sovite are an oil and gas reservoir, as a feed additive for livestock, creating artwork, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo) and that of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.