Ammonite and Black Onyx Necklace Puzzles This cast of a North

This cast of a North African Raptor claw measures 3 inches long

this travel-sized set offers a practical and stylish alternative to disposable utensils

Sparks hands-on STEM learning and builds science confidence

this deck makes astronomy fun without needing a telescope

Sitting size (about 6″ wide by 11″ high) makes it easy to display in rooms

Ammonite and Black Onyx Necklace Puzzles This cast of a NorthThis Ammonite and Black Onyx Necklace brings together a fossil from ancient oceans and a striking natural mineral. The piece features a fossilized ammonite paired with polished black onyx, both set in sterling silver. Ammonites were spiral shelled marine mollusks that lived during the Mesozoic era, and their shells were preserved through fossilization over millions of years. Black onyx is a variety of chalcedony, a microcrystalline form of quartz