Iridescent Baculite Fossil (Straight Ammonite) especially those depicting the Virgin

especially those depicting the Virgin Mary

and abdomen

Weight: 17

Pure fluorite is crystal clear

Iridescent Baculite Fossil (Straight Ammonite) especially those depicting the VirginSize: 2. 2 x 1. 1 x 0. 6 in. Weight: 1. 6 oz. Here is a fossil that is not often seen in your everyday fossil collection. It is the iridescent shell of a Baculite. This is an extinct cephalopod that lived during the Cretaceous Period. They are related to the more popular ammonite. However, their shells were straight instead of coiled. The shell of aragonite and conchiolin creates thin layers with lots of color play due to interference of light. You