CLEONICERAS CLEON IS THE NAME OF THIS AMMONITE AND IT HAS A WONDERFUL IRIDESCENT RED MOTHER OF PEARL OR "FIRE OPAL GLOW". FROM THE MESOZOIC ERA, MIDDLE CRETACEOUS, ALBIAN STAGE--ABOUT 150 MILLION YEARS AGO. MINED, CLEANED AND POLISHED IN TULEAR, MADAGASCAR. SIZE IS 2 1/4 X 1 3/4 X 3/4 INCHES. WEIGHT IS 1.66 OZS. LOTS OF FIRE IN THIS ONE!