Know all about Gritstone and Shale properties here. All properties of rocks are important as they define the type of rock and its application. Gritstone and Shale belong to Sedimentary Rocks.Texture of Gritstone is Earthy whereas that of Shale is Clastic, Splintery. Gritstone appears Layered and Foliated and Shale appears Muddy. The luster of Gritstone and Shale 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 Shale is available in black, brown, buff, green, grey, red, yellow 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 Shale are creating artwork, pottery.