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