Fossil Bivalve Clam Shell – Polished Jurassic Specimen Madagascar North America this striking ring embraces the

this striking ring embraces the gemstone's natural form rather than hiding it behind traditional cutting and polishing

this specimen offers a genuine glimpse into prehistoric marine life

Knightia played an important role within this prehistoric lake ecosystem

✓ Stone: Natural Blue Sapphire

this Dragon’s Egg is perfect for a display cabinet

Fossil Bivalve Clam Shell – Polished Jurassic Specimen Madagascar North America this striking ring embraces theLate Jurassic Fossil Bivalve (Clam) Shell from Madagascar 160 Million Years in the Making This polished fossil bivalve (clam) shell was collected near Sakaraha in the Tulear Province of Madagascar and dates back to the Late Jurassic, approximately 160 million years ago. Expert polishing reveals smooth contours, flowing growth lines, and warm natural tones of cream, honey, and caramel, making each specimen visually unique. The fossil measures 58 mm 79