Sea Urchin (Sand Dollar) Fossil Cabochon – Rare Mexican Echinoid, Hand Polished

This rare Mexican sea urchin (commonly known as sand dollar) fossil (echinoid) is a remarkable piece of natural history, formed over 450 million years ago when ancient marine life thrived in prehistoric oceans. Each fossil carries the imprint of a world long past, preserved through time in stone.

Hand selected and hand polished in Southern Mexico, these fossils are chosen for their beauty, integrity, and jewelry potential. Their natural patterns and subtle textures make every piece truly one of a kind. 

These unique fossils tell an incredible story of Earth’s past, making them perfect for meaningful, one-of-a-kind jewelry creations. Whether set as a pendant or incorporated into a custom design, each fossil offers a powerful connection between nature and history.

No two pieces are ever alike. Each fossil is a small window into ancient life. These little fossils are found in an eroding river bed and hand cut by our Mexican partners. These are ideal for makers who value authenticity, story, and intentional sourcing.

Material: Natural Sea Urchin Fossil (Echinoid)
Common name: Sand dollar Fossil
Origin: Mexico

Approximate Dimensions:
16mm x 13mm x 7mm

Ideal For

Silversmiths & metalsmiths

Jewelry designers & artisans

Fossil & natural history collectors

One-of-a-kind, handmade jewelry projects

Pendants and custom statement pieces

Whether set in silver or showcased in a custom design, this fossil brings ancient history into modern jewelry. It is a meaningful material for creative souls who value natural beauty and deep story.