Ammonite
Ammonite fossils are the preserved spiral shells of extinct marine mollusks from the Jurassic and Cretaceous periods, commonly sold as collectibles in various sizes and qualities.
Fun Fact
While rare large or iridescent specimens can sell for over $100,000, the vast majority of common ammonites available to regular buyers are priced under $100.
Price History
More in Nature
$31.8M
Fossil Tyrannosaurus Rex Skeleton (Stan)
Nearly complete T-Rex skeleton auctioned for research and display.
$5M
Moon Rock Sample (From Apollo 17 Mission)
Lunar basalt specimen collected during humanity's final Apollo mission in 1972.
$3.5M
Hope Diamond
A 45.52-carat deep blue diamond with a legendary curse.
$2.0M
Gold Bar (400 oz)
A standard 400 troy ounce gold bar, the kind stored in Fort Knox.