Opal Butte Thunderegg Lapidary Rough weighing approximately 2lbs. 10oz. Good looking opal! Looks to have some areas that could be trimmed to create cabochons. Take a look at the photos before bidding. If you enjoy lapidary be sure to check out my other available lapidary listings and give my page a follow. All items SOLD AS-IS no returns. Thanks for looking!