Know all about Arkose and Variolite properties here. All properties of rocks are important as they define the type of rock and its application. Arkose belongs to Sedimentary Rocks while Variolite belongs to Igneous Rocks.Texture of Arkose is Clastic whereas that of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Arkose appears Rough and Dull and Variolite appears Dull and Soft. The luster of Arkose is dull while that of Variolite is not available. Arkose is available in reddish brown colors whereas Variolite is available in black, brown, light to dark grey colors. The commercial uses of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones and that of Variolite are cemetery markers, creating artwork.