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