These one-of-a-kind Australian Thunderegg is a must-have for any collector or enthusiast. These beautiful stones were formed over 120 million years ago in Queensland, through a unique reaction of gas bubbles and rhyolitic lava flows in a volcanic environment. As an expert in the industry, I can attest to their authenticity and scientific importance. Each stone is a tangible piece of geological history, making them a rare and valuable addition to any collection.
Weight 0.22kg size 80x80x30 mm