Know all about Gossan and Granodiorite properties here. All properties of rocks are important as they define the type of rock and its application. Gossan belongs to Metamorphic Rocks while Granodiorite belongs to Igneous Rocks.Texture of Gossan is Rough, Sandy whereas that of Granodiorite is Granular, Phaneritic. Gossan appears Dull and Banded and Granodiorite appears Veined or Pebbled. The luster of Gossan is metallic while that of Granodiorite is grainy, pearly and vitreous. Gossan is available in brown, brown- black, gold, green, rust colors whereas Granodiorite is available in black, grey, orange, pink, white colors. The commercial uses of Gossan are cemetery markers, commemorative tablets, gemstone and that of Granodiorite are curling, gemstone, laboratory bench tops, tombstones.