Know all about Basaltic Trachyandesite and Gossan properties here. All properties of rocks are important as they define the type of rock and its application. Basaltic Trachyandesite belongs to Igneous Rocks while Gossan belongs to Metamorphic Rocks.Texture of Basaltic Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Gossan is Rough, Sandy. Basaltic Trachyandesite appears Dull and Soft and Gossan appears Dull and Banded. The luster of Basaltic Trachyandesite is not available while that of Gossan is metallic. Basaltic Trachyandesite is available in black, brown, light to dark grey colors whereas Gossan is available in brown, brown- black, gold, green, rust colors. The commercial uses of Basaltic Trachyandesite are an oil and gas reservoir, commemorative tablets, creating artwork and that of Gossan are cemetery markers, commemorative tablets, gemstone.