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