Birds Eye Rhyolite Cabochon set in sterling silver.
Birds Eye Rhyolite is found in Casas Grandes of Chihuahua Mexico. Color or property of the stone is because of the certain minerals which are found in the open pit of the Chihuahua Mountains. Casas Grandes is considered to be the most important archaeological zone of the north region of the country in Chihuahua, Mexico. Scientifically, it is occurred in a valley without vegetation. Hard rock mining needs to be done to get to this particular rough.