Know all about Rhyolite and Oil shale properties here. All properties of rocks are important as they define the type of rock and its application. Rhyolite belongs to Igneous Rocks while Oil shale belongs to Sedimentary Rocks.Texture of Rhyolite is Aphanitic, Glassy, Porphyritic whereas that of Oil shale is Splintery. Rhyolite appears Banded and Oil shale appears Muddy. The luster of Rhyolite is earthy while that of Oil shale is dull. Rhyolite is available in grey, white, light black colors whereas Oil shale is available in black, brown, buff, green, grey, red, yellow colors. The commercial uses of Rhyolite are gemstone, laboratory bench tops, jewelry and that of Oil shale are an oil and gas reservoir.