Iridescent Baculite Fossil (Straight Ammonite) Chemical Formula: CuSO4·5H2O

Chemical Formula: CuSO4·5H2O

It gets its name from the Greek word apophylliso

Weight: 17

and abdomen

There is also some matrix left

Iridescent Baculite Fossil (Straight Ammonite) Chemical Formula: CuSO4·5H2OSize: 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