Know all about Arkose and Scoria properties here. All properties of rocks are important as they define the type of rock and its application. Arkose belongs to Sedimentary Rocks while Scoria belongs to Igneous Rocks.Texture of Arkose is Clastic whereas that of Scoria is Vesicular. Arkose appears Rough and Dull and Scoria appears Glassy and Vesicular. The luster of Arkose is dull while that of Scoria is subvitreous to dull. Arkose is available in reddish brown colors whereas Scoria is available in black, brown, dark grey to black, red colors. The commercial uses of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones and that of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills.