Know all about Scoria and Arkose properties here. All properties of rocks are important as they define the type of rock and its application. Scoria belongs to Igneous Rocks while Arkose belongs to Sedimentary Rocks.Texture of Scoria is Vesicular whereas that of Arkose is Clastic. Scoria appears Glassy and Vesicular and Arkose appears Rough and Dull. The luster of Scoria is subvitreous to dull while that of Arkose is dull. Scoria is available in black, brown, dark grey to black, red colors whereas Arkose is available in reddish brown 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 Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones.