A Caenisites nodule that has been popped to reveal a larger Caenisites turneri surrounded by smaller ammonites. Both parts of the nodule have been retained, so it could be prepared as a “popping stone” with a lid. Alternatively the whole surface could be prepared, probably revealing more ammonites. The larger ammonites is approx. 40mm diameter.

Ammonite 40mm Block 155mm X 80mm

★ ★ ★ ★ Expert. These pieces are the most challenging and will require use of air pens and an air abrasive to achieve the best results.