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SEP410 Septarian Sphere

SEP410 Septarian Sphere

$50.00

This is a very nice Sphere carved from a Septarian Nodule from Madagascar.  It measures 4 3/8″ 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.

In stock

Description

Septarian, also know as a type of Concretion, is a volume of sedimentary rock in which a mineral cement fills the porosity.  Concretions are often ovoid or spherical in shape.  They form within layers of sedimentary strata that has already been deposited.  It is composed of a Carbonate mineral such as Calcite, a Silica such as Chert, Flint or Jasper or an Iron Oxide such as Goethite or Hematite.  It is commonly found in Shale, Siltstones and Sandstones.

 

Additional information

Weight 3.5 lbs
Dimensions 4.375 × 4.375 × 4.375 in

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