Characteristics related to grain size of rocks are called as texture. Here you can know more about texture of Ganister and Theralite. Texture of Ganister is Clastic, Granular, Rough whereas that of Theralite is Phaneritic. Based on the texture of rocks, they are used for various purposes. Get detailed information about Ganister vs Theralite texture, color, appearance and maintenance in the next section.