Know all about Appinite and Gossan properties here. All properties of rocks are important as they define the type of rock and its application. Appinite belongs to Igneous Rocks while Gossan belongs to Metamorphic Rocks.Texture of Appinite is Porphyritic whereas that of Gossan is Rough, Sandy. Appinite appears Dull, Banded and Foilated and Gossan appears Dull and Banded. The luster of Appinite is subvitreous to dull while that of Gossan is metallic. Appinite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Gossan is available in brown, brown- black, gold, green, rust colors. The commercial uses of Appinite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner and that of Gossan are cemetery markers, commemorative tablets, gemstone.