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