What is Rhyolite
By Michael C. Rygel – Own work, CC BY-SA 3.0, Link
Rhyolite is the most silica-rich of volcanic rocks.
The name rhyolite was introduced into geology in 1860 by the German traveler and geologist Ferdinand von Richthofen from the Greek word rhýax (“a stream of lava”) and the rock name suffix “-lite”.
Click here to read more about the ghost town, Rhyolite, Nevada, and here to learn about how to find garnets in rhyolite stones at Garnet Hill Nevada.