Know all about Trachyte and Ganister properties here. All properties of rocks are important as they define the type of rock and its application. Trachyte belongs to Igneous Rocks while Ganister belongs to Sedimentary Rocks.Texture of Trachyte is Aphanitic to Porphyritic whereas that of Ganister is Clastic, Granular, Rough. Trachyte appears Banded and Ganister appears Rough. The luster of Trachyte is metallic while that of Ganister is dull. Trachyte is available in black, brown, dark greenish - grey, green, grey, light to dark grey, 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 Trachyte 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.