Iridescent Pyrite Sphere


Iridescent Pyrite Sphere from Ulyanovsk Oblast, Russia

Approximate Dimensions: H: 4 x W: 3 x W: 3.5"

Iridescent rainbow-pyrite septarian halves are found near Ulyanovsk Oblast, Russia. These unique concretions form in clay-rich soils that experience shrinkage, leading to the development of fissures and cracks at their center during the dehydration process.