This is a Dugway Geode from Utah, it has nice druzy crystals inside a swirl shaped chamber surrounded by agate and the unique rhyolite shell that these are known for. This one is also very UV reactive showing a bright green in the included photo under long wave UV light. It is fully polished and approximately 4-1/2” x 3-3/4” and 2” deep.
shipping and packaging is included in the price.