Know all about Gossan and Adakite properties here. All properties of rocks are important as they define the type of rock and its application. Gossan belongs to Metamorphic Rocks while Adakite belongs to Igneous Rocks.Texture of Gossan is Rough, Sandy whereas that of Adakite is Porphyritic. Gossan appears Dull and Banded and Adakite appears Dull and Soft. The luster of Gossan is metallic while that of Adakite is grainy, pearly and vitreous. Gossan is available in brown, brown- black, gold, green, rust colors whereas Adakite is available in black, brown, light to dark grey colors. The commercial uses of Gossan are cemetery markers, commemorative tablets, gemstone and that of Adakite are commemorative tablets, pottery, used in aquariums.