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