How much is a thunderegg worth?

The value of a thunderegg can vary significantly based on factors such as size, quality, patterns, and location. Generally, they can range from $10 to several hundred dollars, with particularly rare or well-formed specimens fetching higher prices. Collectors and enthusiasts often determine value based on aesthetics and uniqueness, so market demand also plays a role. If you're looking to buy or sell, it's a good idea to check recent sales or consult with experts in mineral shows or online marketplaces.