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