Know all about Gritstone and Shoshonite properties here. All properties of rocks are important as they define the type of rock and its application. Gritstone belongs to Sedimentary Rocks while Shoshonite belongs to Igneous Rocks.Texture of Gritstone is Earthy whereas that of Shoshonite is Porphyritic. Gritstone appears Layered and Foliated and Shoshonite appears Dull. The luster of Gritstone and Shoshonite is dull. Gritstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors whereas Shoshonite is available in brown- black, dark brown colors. The commercial uses 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 and that of Shoshonite are cemetery markers, creating artwork.