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A hands-on connection to prehistoric marine ecosystems
or anyone fascinated by geology
With 60 progressive challenges from beginner to expert
Dive into the world of prehistoric seas and spark curiosity about ancient marine life
or anyone curious about how trace elements and modern coatings transform natural stones
Ammonite and Black Onyx Necklace Gadget A hands-on connection to prehistoricThis 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