Know all about Ganister and Hornfels properties here. All properties of rocks are important as they define the type of rock and its application. Ganister belongs to Sedimentary Rocks while Hornfels belongs to Metamorphic Rocks.Texture of Ganister is Clastic, Granular, Rough whereas that of Hornfels is Granular, Platy. Ganister appears Rough and Hornfels appears Dull. The luster of Ganister is dull while that of Hornfels is shiny. 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 Hornfels is available in brown, dark greenish - grey, green, reddish brown 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 Hornfels are cemetery markers, commemorative tablets, creating artwork.