Utah Septarian Nodule Rough Chunk! Mexican Agate which causes a unique refraction

which causes a unique refraction of light within them

This material has not been on the market for a very long time

This material however has been sourced by private land

It makes some pretty unique cabochons

Utah Septarian Nodule Rough Chunk! Mexican Agate which causes a unique refractionThis septarian nodule is from Utah. We've had a very high rate of gorgeous calcite and pattern within these, and a few from this mine that we've cut have even had ammonite fossils within. Septarian Nodules are round stones that were organic fossils that were devoured by bacteria and replaced with calcite! They can be geodes (hollow with calcite crystals), or solid with unique and interesting patterns! Most Septarian Nodules take an excellent polish