Know all about Scoria and Gossan properties here. All properties of rocks are important as they define the type of rock and its application. Scoria belongs to Igneous Rocks while Gossan belongs to Metamorphic Rocks.Texture of Scoria is Vesicular whereas that of Gossan is Rough, Sandy. Scoria appears Glassy and Vesicular and Gossan appears Dull and Banded. The luster of Scoria is subvitreous to dull while that of Gossan is metallic. Scoria is available in black, brown, dark grey to black, red colors whereas Gossan is available in brown, brown- black, gold, green, rust colors. The commercial uses of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills and that of Gossan are cemetery markers, commemorative tablets, gemstone.