Fossilized Cleoniceras Ammonite with Crystal-Filled Chambers – Madagascar A beautiful Cleoniceras ammonite from Madagascar, dating back to the Cretaceous period (approx. 110 million years). This polished specimen displays exceptionally detailed suture patterns and a striking contrast of dark and light mineral tones across the shell surface. Several chambers are naturally filled with clear to whitish crystals, visible along the polished edge, adding depth and sparkle to the piece. These crystalline pockets highlight the internal structure of the ammonite and enhance its visual appeal. A refined and decorative fossil, perfect for collectors, interior décor, or educational display. Comes with a clear acrylic stand.