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