Know all about Arkose and Shoshonite properties here. All properties of rocks are important as they define the type of rock and its application. Arkose belongs to Sedimentary Rocks while Shoshonite belongs to Igneous Rocks.Texture of Arkose is Clastic whereas that of Shoshonite is Porphyritic. Arkose appears Rough and Dull and Shoshonite appears Dull. The luster of Arkose and Shoshonite is dull. Arkose is available in reddish brown colors whereas Shoshonite is available in brown- black, dark brown colors. The commercial uses of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones and that of Shoshonite are cemetery markers, creating artwork.