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