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