Know all about Chert and Rhyolite properties here. All properties of rocks are important as they define the type of rock and its application. Chert belongs to Sedimentary Rocks while Rhyolite belongs to Igneous Rocks.Texture of Chert is Banded, Rough whereas that of Rhyolite is Aphanitic, Glassy, Porphyritic. Chert appears Glassy or Pearly and Rhyolite appears Banded. The luster of Chert is waxy and dull while that of Rhyolite is earthy. Chert is available in black, brown, green, grey, red, white colors whereas Rhyolite is available in grey, white, light black colors. The commercial uses of Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms and that of Rhyolite are gemstone, laboratory bench tops, jewelry.