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Rare Pyritized Ammonite Septarian Chamber on Boulder Opal Chain SOLD

$178.00

Product Description

This rare dramatic pendant features a Pyritized Ammonite Septarian Chamber* on a microfaceted Boulder Opal Chain.

*Septarian specimens are geodes that are a combination of yellow calcite, brown aragonite, grey limestone and white or clear barite. The word septarian comes from the Latin word "septum," meaning "partition." Septarian specimens are believed to have formed during the Cretaceous period when sea levels were much higher. Volcanic eruptions and other occurrences resulted in the death of small sealife that then sank to into the seabed. As the specimens decomposed, sediments would accumulate and create a nodule or ball. When the oceans eventually receded, these balls were left exposed to the air and dried out, causing shrinking and cracking. The beautiful patterns you see inside septarian nodules are the result of this cracking.

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