This lot includes 2 specimens of the same unknown rock that was found in the desert in the USA. I have had a geologist and a meteorite specialist look at it and both did not know what kind of rock this was or how it was originated. The combined weight of both rocks is roughly 20-25 pounds. Whether you are a collector or just looking for decorative pieces that makes for great conversational pieces, this lot has something for everyone that showcases the natural beauty of the Earth or possibly from another planet. The more I have researched this specimen, the more I find out how ultra rare and one of kind this specimen truly is, as I find there is nothing else that comes close to it. This specimen does resemble an egg and could be proof and evidence of "panspermia."