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