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