Red Iridescent Ammonite - Madagascar it has all the characteristics

it has all the characteristics you want in a nice specimen

Fluorspar was first described in the early 1530s by a German scientist

The shell of aragonite and conchiolin creates thin layers with lots of color play due to interference of light

Anatase is formed synthetically to be used as a semiconductor

Stone: White Jade

Red Iridescent Ammonite - Madagascar it has all the characteristicsThe Cleoniceras sp. of ammonites has gained popularity over the years. Many collectors enjoy the brilliant flashes of color that are showcased on its shell. These iridescent colors are caused by light reflecting off layers of fossilized aragonite. The most highly prized specimens are excavated from the Bearpaw Formation in Alberta, Canada. These creatures lived during the Cretaceous Period, specifically around 110 million years ago. Ammonites are an