Know all about Scoria and Rhyolite properties here. All properties of rocks are important as they define the type of rock and its application. Scoria and Rhyolite belong to Igneous Rocks.Texture of Scoria is Vesicular whereas that of Rhyolite is Aphanitic, Glassy, Porphyritic. Scoria appears Glassy and Vesicular and Rhyolite appears Banded. The luster of Scoria is subvitreous to dull while that of Rhyolite is earthy. Scoria is available in black, brown, dark grey to black, red colors whereas Rhyolite is available in grey, white, light black colors. The commercial uses of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills and that of Rhyolite are gemstone, laboratory bench tops, jewelry.