Know all about Gossan and Anorthosite properties here. All properties of rocks are important as they define the type of rock and its application. Gossan belongs to Metamorphic Rocks while Anorthosite belongs to Igneous Rocks.Texture of Gossan is Rough, Sandy whereas that of Anorthosite is Foliated, Glassy. Gossan appears Dull and Banded and Anorthosite appears Layered, Banded, Veined and Shiny. The luster of Gossan is metallic while that of Anorthosite is pearly to subvitreous. Gossan is available in brown, brown- black, gold, green, rust colors whereas Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors. The commercial uses of Gossan are cemetery markers, commemorative tablets, gemstone and that of Anorthosite are creating artwork, curling.