Know all about Gossan and Comendite properties here. All properties of rocks are important as they define the type of rock and its application. Gossan belongs to Metamorphic Rocks while Comendite belongs to Igneous Rocks.Texture of Gossan is Rough, Sandy whereas that of Comendite is Porphyritic. Gossan appears Dull and Banded and Comendite appears Foliated. The luster of Gossan is metallic while that of Comendite is dull. Gossan is available in brown, brown- black, gold, green, rust colors whereas Comendite is available in blue, bluish - grey colors. The commercial uses of Gossan and Comendite are cemetery markers, commemorative tablets, gemstone.