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EGG107 Septarian

EGG107 Septarian


This is a very nice Septarian egg from Madagascar.  It measures 3 1/2″ tall x 2 3/8″ in diameter and has a good polish.  It is a pretty egg with nice Yellow Calcite crystal cavity center and plenty of Brown Aragonite. A great collectors piece!

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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

Weight1 lbs
Dimensions3.5 × 3.5 × 2.375 in

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