This IMMEASURABLY RARE ammonite is of a type that is much more scarce than typical solid coil ammonites. This type here is called a heteromorph and it features an open coil with space in between each whorl to the center. The exact species is not determined but these circular varieties are even more rare than the J-shaped open coil specimens found in the same region. We prepared this extraordinary example in our lab and the chamber detail you see (on both sides!) is fully exposed and natural. This is one of the more unusual examples we have worked on because there was a presence of the original shell preserved in solid calcite. The burnt orange color is natural and has been enhanced and sealed to bring it back to the original calcite tone as when it was first found prior to preparation with the air chisel. You can seven see INTERNAL chamber detail preserved in the form of small "oak leaf" patterns as seen in the second to last photograph. The dense presence of the original shell is responsible for keeping intact the STUNNING smooth outer chamber ridge anatomy. The ridged anatomy you see is ORIGINAL AND NATURAL. We were able to keep even the inner whorl ridges intact during the preparation process. There is no fabrication with only repair and crack filling due to the inevitable damage these rare fossils sustain in extraction. From the coastal Cretaceous deposits of Agadir, Morocco, heteromorph ammonites of this circular, open-coil nature are only very rarely found in this size class. This is an especially fine example with 100% of the natural chamber detail preserved upon completion of matrix removal. Beware of completely carved fakes that offer no trace of original chamber detail as this is a problem in the market today. Ammonites that occur this size naturally are EXTREMELY RARE!
With its three-dimensional form and texture, this ammonite specimen will bring any event to a halt when displayed. It is in a class all its own, not only desired by collectors, but treasured by interior designers and architects alike for incorporating into a stunning display. We highly recommend this magnificent giant fossil to either augment a collection or serve as a monumental interior design piece.