Rhyolite Stone Seashell Carved Rock Shell
This beautiful, hand carved Rhyolite seashell carving is 3 inches long, less than 3 inches wide and .75 inches thick. Very unusual and pretty!
Rhyolite is an extrusive igneous rock formed as a deposit of volcanic ash. The ash becomes rock after being exposed to extreme heat and pressure.
Iron oxide stains create the beautiful patterns. The name comes from the Greek word meaning "to flow" because the rock shows flow structure formed when it was molten.