
Granite Slab
A granite slab is a large, thick sheet of natural granite stone typically used for countertops, but in a nature wilderness context, it refers to a flat rock outcrop; retail prices are for quarried countertop slabs sold to consumers.
Estimated value as of 2026 · Source: Average of 2026 retail ranges from sources like Marble.com ($35-75/sq ft) and Ma…
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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.