Know all about Ganister and Gritstone properties here. All properties of rocks are important as they define the type of rock and its application. Ganister and Gritstone belong to Sedimentary Rocks.Texture of Ganister is Clastic, Granular, Rough whereas that of Gritstone is Earthy. Ganister appears Rough and Gritstone appears Layered and Foliated. The luster of Ganister and Gritstone is dull. Ganister and Gritstone 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 Ganister are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones 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.