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SEP109 Septarian Sphere

SEP109 Septarian Sphere


This is a very nice Sphere carved from a Septarian Nodule from Madagascar.  It measures 2 3/4″ in diameter.  It has a nice polish on the smoothed exterior and has a dark, yet sparkly Aragonite exposed center cavity.  A must have for any collection.

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Septarians are commonly composed of a carbonate mineral such as Calcite, a microcrystalline form of Silica as in Flint or Jasper, or an Iron Oxide such as Hematite.  These specimens are also known as a concretion which is a type of sedimentary rock.   Septarians were formed millions of years ago by sediment forming around a fossil to create a mud ball transforming the fossil into Calcite and Aragonite.

Additional information

Weight1.00 lbs
Dimensions2.75 × 2.75 × 2.75 in

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