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