Trilobite
A trilobite fossil is the preserved remains of an extinct marine arthropod from the Paleozoic era, commonly sold as collector specimens from sites like Morocco and Utah.
Estimated value as of 2026 · Source: Average from entry-level retail listings on FossilAgeMinerals and FossilEra (mor…
Fun Fact
Elrathia kingi trilobites from Utah are among the most abundant and affordable, with over 500 million years of age, yet complete museum-quality Moroccan specimens can fetch over $3,000.
Price History
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Californium-252 (per gram)
Californium-252 is a synthetic radioactive element produced in nuclear reactors, valued as an exceptional neutron source for medical and industrial applications.
Dog Collar
A dog collar is a band worn around a dog's neck, typically made of nylon or leather, used for identification, control, and attaching leashes.
Fossil Tyrannosaurus Rex Skeleton (Stan)
Nearly complete T-Rex skeleton auctioned for research and display.
Moon Rock Sample (From Apollo 17 Mission)
Lunar basalt specimen collected during humanity's final Apollo mission in 1972.