Geode
A geode is a hollow rock lined with crystals, often quartz, amethyst, or celestine, commonly sold as decorative mineral specimens in the fossils and minerals category.
Estimated value as of 2026 · Source: Fossilicious and general range from multiple sources
Fun Fact
Small quartz geodes from Morocco, about 1-4 inches, are the most affordable and popular for beginners, often sold in sets for breaking open as a fun activity.
Price History
More in Nature
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.
Stepping Stone
A garden stepping stone is a decorative concrete or stone paver used to create pathways through lawns, gardens, or patios, often featuring embossed designs like flowers, animals, or verses.
Fossil Tyrannosaurus Rex Skeleton (Stan)
Nearly complete T-Rex skeleton auctioned for research and display.
Californium-252 (per gram)
Rare synthetic element produced in nuclear reactors, the rarest element in practical use.