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