Crinoid Fossil Jewelry in Sterling Silver  

Ancient Sea Lily Fossils Set in .925 Silver Settings

Crinoids thrived in shallow Paleozoic seas, anchoring themselves to the seafloor with root-like structures while their feathery arms filtered nutrients from the water. When these creatures died, their calcite skeletons broke apart and accumulated in sediment layers. Over millions of years, pressure and mineralization transformed these deposits into the fossil-bearing stone we use today. The characteristic circular and star-shaped patterns you see in crinoid fossil jewelry are cross-sections of their segmented stems. Most crinoid fossils used in jewelry come from limestone formations in the American Midwest, Morocco, and parts of Indonesia. The stone rates between 3 and 4 on the Mohs hardness scale, similar to other limestone-based materials. This means crinoid fossil pieces work best in pendants, earrings, and brooches rather than rings worn during heavy work. We set each fossil in .925 sterling silver with bezels that shield the stone edges from impact. SilverRush Style has offered natural stone jewelry since 2005. All orders ship free within the United States. Browse our crinoid fossil collection to find a piece of prehistoric ocean life preserved in silver.