Ammonites were marine animals that existed during the Jurassic and Cretaceous periods, and are related to modern-day octopi, squid and cuttlefish. The same event that wiped out dinosaurs was the end of this species, as well. Pyritized ammonite occurs when, during petrification, the ammonite's organic material is replaced with pyrite, or iron disulfide more commonly known as 'fool's gold'. The result is a beautifully preserved and durable ammonite fossil.
Pyritized Ammonite Classification
||Pyritized Ammonite |
Pyritized Ammonite Optical Properties
Pyritized Ammonite Characteristic Physical properties
||pyritized ammonite is fossil ammonite that has been replaced by pyrite. Well preserved specimens show nautilus or spiral like appearance. |