Know all about Ganister and Argillite properties here. All properties of rocks are important as they define the type of rock and its application. Ganister and Argillite belong to Sedimentary Rocks.Texture of Ganister is Clastic, Granular, Rough whereas that of Argillite is Clastic, Polished. Ganister appears Rough and Argillite appears Rough and Dull. The luster of Ganister is dull while that of Argillite is waxy and dull. Ganister is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors whereas Argillite is available in dark grey to black, pink, red, white 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 Argillite are fire resistant, used to manufracture paperweights and bookends.