Know all about Phonolite and Ganister properties here. All properties of rocks are important as they define the type of rock and its application. Phonolite belongs to Igneous Rocks while Ganister belongs to Sedimentary Rocks.Texture of Phonolite is Granular whereas that of Ganister is Clastic, Granular, Rough. Phonolite appears Banded and Foilated and Ganister appears Rough. The luster of Phonolite is greasy to dull while that of Ganister is dull. Phonolite is available in brown, buff, cream, green, grey, pink, white colors whereas Ganister is 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 Phonolite are cemetery markers, creating artwork and that of Ganister are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.