Know all about Gritstone and Adakite properties here. All properties of rocks are important as they define the type of rock and its application. Gritstone belongs to Sedimentary Rocks while Adakite belongs to Igneous Rocks.Texture of Gritstone is Earthy whereas that of Adakite is Porphyritic. Gritstone appears Layered and Foliated and Adakite appears Dull and Soft. The luster of Gritstone is dull while that of Adakite is grainy, pearly and vitreous. Gritstone and Adakite are 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 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 Adakite are commemorative tablets, pottery, used in aquariums.