Know all about Adakite and Greywacke properties here. All properties of rocks are important as they define the type of rock and its application. Adakite belongs to Igneous Rocks while Greywacke belongs to Sedimentary Rocks.Texture of Adakite is Porphyritic whereas that of Greywacke is Clastic. Adakite appears Dull and Soft and Greywacke appears Dull. The luster of Adakite is grainy, pearly and vitreous while that of Greywacke is dull. Adakite is available in black, brown, light to dark grey 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 Adakite are commemorative tablets, pottery, used in aquariums and that of Greywacke are as armour rock for sea walls, petroleum reservoirs, sea defence, tombstones.