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