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