Know all about Andesite and Ganister properties here. All properties of rocks are important as they define the type of rock and its application. Andesite belongs to Igneous Rocks while Ganister belongs to Sedimentary Rocks.Texture of Andesite is Aphanitic to Porphyritic whereas that of Ganister is Clastic, Granular, Rough. Andesite appears Dull and Soft and Ganister appears Rough. The luster of Andesite is vitreous while that of Ganister is dull. Andesite is available in bluish - grey, grey, pink, yellow 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 Andesite are commemorative tablets, creating artwork and that of Ganister are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.