Know all about Rhyolite and Lignite properties here. All properties of rocks are important as they define the type of rock and its application. Rhyolite belongs to Igneous Rocks while Lignite belongs to Sedimentary Rocks.Texture of Rhyolite is Aphanitic, Glassy, Porphyritic whereas that of Lignite is Amorphous, Glassy. Rhyolite appears Banded and Lignite appears Veined or Pebbled. The luster of Rhyolite is earthy while that of Lignite is dull to vitreous to submetallic. Rhyolite is available in grey, white, light black colors whereas Lignite is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Rhyolite are gemstone, laboratory bench tops, jewelry and that of Lignite are electricity generation.