Know all about Ganister and Phonolite properties here. All properties of rocks are important as they define the type of rock and its application. Ganister belongs to Sedimentary Rocks while Phonolite belongs to Igneous Rocks.Texture of Ganister is Clastic, Granular, Rough whereas that of Phonolite is Granular. Ganister appears Rough and Phonolite appears Banded and Foilated. The luster of Ganister is dull while that of Phonolite is greasy to 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 Phonolite is available in brown, buff, cream, green, grey, pink, 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 Phonolite are cemetery markers, creating artwork.