Large Golden Calcite Septarian Concretion

A gorgeous golden yellow Calcite concretion from Utah. This large and lovely specimen features sharply terminated Calcite crystals and dark brown Aragonite crystals. Besides its unique free-form shape, this specimen contains a special surprise... a large golden Barite crystal can be seen at the base of the Calcite crystal cavity!

The more angular cracks and cavity separations of the stone are called "septaria". This beautiful specimen formed from the concentration of golden calcite and brown aragonite in a gray limestone matrix. Some refer to this Golden Calcite formation as a "Septarian Concretion". What is the difference between a geode and a concretion? Read more here!

The front and sides of the piece have been polished to a high gloss finish. The central crystal cavity and back have been left in their natural state. Besides the lovely nature of this specimen under regular light, when exposed to a UV flashlight, this piece fluoresces (see photos for details). And bonus, the large Barite crystal present at the base also phosphoresces!

This specimen has a flat cut base allowing it to display beautifully without a stand.