Originating from Queensland and dating back more than 120 million years, this extraordinary Australian Thunderegg is a true treasure for any gemstone lover or collector. These remarkable formations emerged from a unique interplay between gas bubbles and rhyolitic lava during ancient volcanic activity. Verified for authenticity and scientific value, each Thunderegg offers a tangible connection to Earth’s deep geological past — a distinctive and prized specimen for any collection.
Join the list for first look at new opals, recent finds from the fields, and the occasional piece priced for subscribers only. No spam — just stones worth your time.
Choosing a selection results in a full page refresh.
