Know all about Variolite and Rhyolite properties here. All properties of rocks are important as they define the type of rock and its application. Variolite and Rhyolite belong to Igneous Rocks.Texture of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Rhyolite is Aphanitic, Glassy, Porphyritic. Variolite appears Dull and Soft and Rhyolite appears Banded. The luster of Variolite is not available while that of Rhyolite is earthy. Variolite is available in black, brown, light to dark grey colors whereas Rhyolite is available in grey, white, light black colors. The commercial uses of Variolite are cemetery markers, creating artwork and that of Rhyolite are gemstone, laboratory bench tops, jewelry.