
Moonstone
Moonstone is a variety of feldspar mineral known for its layered structure that produces a pearly blue sheen called adularescence, commonly sold as tumbled stones, cabochons, or polished specimens in the minerals and fossils market.
Estimated value as of 2026 · Source: Average from tumbled stones and entry-level cabochons across FossilEra, Healing …
Fun Fact
High-quality moonstone cabochons with strong blue flash can exceed $100 per carat, while common tumbled pieces start as low as $1 on sale.
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.