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