Know all about Shoshonite and Gritstone properties here. All properties of rocks are important as they define the type of rock and its application. Shoshonite belongs to Igneous Rocks while Gritstone belongs to Sedimentary Rocks.Texture of Shoshonite is Porphyritic whereas that of Gritstone is Earthy. Shoshonite appears Dull and Gritstone appears Layered and Foliated. The luster of Shoshonite and Gritstone is dull. Shoshonite is available in brown- black, dark brown colors whereas Gritstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Shoshonite are cemetery markers, creating artwork and that of Gritstone are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo), tombstones.