A large selection of gorgeous polished spheres of Septarian from Madagascar and Utah.
Septarian or septarian nodules are concretions containing angular cavities or cracks, called "septaria". The cracks in the concretions are filled in with minerals such as calcite (yellow) and aragonite (brown) and sometime pyrite causing the very interesting patterns. The Septarian from Madagascar and Utah was formed during the Jurassic period, around 150 million years ago.
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SEPTARIAN SPHERES FOR SALE

: $12 to $265