Ammonite and Black Onyx Necklace Puzzles Explore the beauty and science

Explore the beauty and science of native metals with this authentic copper slab

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

and butterflies

and anyone fascinated by the universe

this deck makes astronomy fun without needing a telescope

Ammonite and Black Onyx Necklace Puzzles Explore the beauty and scienceThis 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