Red Iridescent Ammonite - Madagascar Ruby is a variety of

Ruby is a variety of corundum (aluminum oxide) and kyanite is an aluminum silicate that forms in sprays of blue

sweetgrass

Weight: ~ 16 oz

It is the inclusion of these metals that causes the blue/green color

There are 26 separate impact creates

Red Iridescent Ammonite - Madagascar Ruby is a variety ofThe 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