Know all about Basalt and Gossan properties here. All properties of rocks are important as they define the type of rock and its application. Basalt belongs to Igneous Rocks while Gossan belongs to Metamorphic Rocks.Texture of Basalt is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Gossan is Rough, Sandy. Basalt appears Dull and Soft and Gossan appears Dull and Banded. The luster of Basalt is not available while that of Gossan is metallic. Basalt 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 Basalt are an oil and gas reservoir, commemorative tablets, creating artwork, used in aquariums and that of Gossan are cemetery markers, commemorative tablets, gemstone.