I purchased a trilobite specimen for a science project that used photogrammetry to create a 3D reconstruction of a fossilized organism. They are surprisingly cheap considering their age, but as it turns out, fossils and fossil fragments can vary widely in price based on various factors such as workmanship, rarity, etc. The map is used to determine the exact nature and approximate location of the discovery. The listing says it comes with a certificate of authenticity, but to be honest it's justβ¦