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SEP308 Septarian Egg

SEP308 Septarian Egg


SEP 308:  Septarian Egg – cut and polished, from host Concreation.
           Locality – Utah.
 Mineral Content – Yellow Calcite and Brown Aragonite boarders.

Approximate measurements: 4 5/8 x 3 1/4″

Availability: Single item, exclusive.

In stock


Septarian, also known 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

Weight2.50 lbs
Dimensions4.125 × 4.125 × 2.75 in

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