Know all about Tonalite and Greywacke properties here. All properties of rocks are important as they define the type of rock and its application. Tonalite belongs to Igneous Rocks while Greywacke belongs to Sedimentary Rocks.Texture of Tonalite is Phaneritic whereas that of Greywacke is Clastic. Tonalite appears Banded and Foilated and Greywacke appears Dull. The luster of Tonalite is subvitreous to dull while that of Greywacke is dull. Tonalite is available in black, brown, light to dark grey, 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 Tonalite are cemetery markers, creating artwork and that of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.