Thunder Egg Half GT44

A geode type of agate, known as a "Thunder Egg" by Native American Indians, is typically found in Oregon. Most Fire agates come from Mexico and Arizona. On the outside. Thunder Eggs are rough and pocked. Yet, this masks the beauty of the internal crystal. The "crust" is fairly weak and a little fragile as over centuries, it's been washed away. This allows the gemstone to be discovered, typically along the banks of rivers and streams.