Gembone Necklace - Genuine Fossil Dinosaur Bone
- a genuine fossilized dinosaur bone bead - this one is a deep gray/brown with black cellular patterns, dark and moody!
- 16" antiqued sterling silver oval link chain with lobster claw clasp - this piece looks best worn closer to the neck, if you'd like a different length just add a note at checkout or reply to your order confirmation email
- a perfect layering necklace or simple statement piece!
For more genuine fossil jewelry, visit the Archean Collection.
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Agatized dinosaur bones (aka gembones) are a rare type of fossil. To become agatized, first the original bone must be covered quickly in a material like ocean sediment or volcanic ash to prevent scavenging and keep oxygen out. In most cases, the bone is then permineralized - mineral rich ground water slowly seeps in and deposits some of those minerals in open cavities and tiny spaces in the cells. This is where the journey for most fossils ends. But when conditions are right, a second re-mineralization occurs and types of silica (jasper, agate, chalcedony, and my favorite kind of fossil - opal!) replace the first minerals, resulting in beautiful, shiny gembone!