8.5″ Septarian Obelisk DS785 For Discount

8.5″ Septarian Obelisk DS785

8.5″ Septarian Obelisk
Approx. Dimensions: 1.75×1.5×8.5 inches
Approx. Weight: 748 grams
Locality: Mexico
This septarian obelisk from Mexico was hand carved. The calcite crystals are UV reactive and glow a greenish/yellow under a long-wave UV flashlight!

Septarian, a distinctive sedimentary rock, forms through the combination of calcite, aragonite, and limestone with organic matter and minerals such as iron sulfide. It develops in concretions within sedimentary deposits, often found in regions with ancient seabeds, notably in Utah, USA, Madagascar, and Morocco. These concretions undergo a process of cracking and subsequent mineral infill, resulting in the characteristic septarian pattern. Though primarily valued for its ornamental qualities, septarian nodules have also been studied for their geological significance, offering insights into ancient environments and processes.