Know all about Ganister and Gneiss properties here. All properties of rocks are important as they define the type of rock and its application. Ganister belongs to Sedimentary Rocks while Gneiss belongs to Metamorphic Rocks.Texture of Ganister is Clastic, Granular, Rough whereas that of Gneiss is Banded, Foliated, Platy. Ganister appears Rough and Gneiss appears Foliated. The luster of Ganister and Gneiss is dull. Ganister and Gneiss 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 Gneiss are cemetery markers, jewelry, tombstones, used in aquariums.