Know all about Rhyolite and Novaculite properties here. All properties of rocks are important as they define the type of rock and its application. Rhyolite belongs to Igneous Rocks while Novaculite belongs to Sedimentary Rocks.Texture of Rhyolite is Aphanitic, Glassy, Porphyritic whereas that of Novaculite is Banded, Glassy, Rough, Vitreous. Rhyolite appears Banded and Novaculite appears Glassy or Pearly. The luster of Rhyolite is earthy while that of Novaculite is waxy and dull. Rhyolite is available in grey, white, light black colors whereas Novaculite is available in black, brown, green, grey, red, white colors. The commercial uses of Rhyolite are gemstone, laboratory bench tops, jewelry and that of Novaculite are cemetery markers, gemstone, in aquifers, in fire-starting tools, jewelry, manufacture of tools, pebbles are used in ball mills to grind in ceramics industry, to determine the gold content of jewelry.