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SEP114 Septarian Slab

SEP114 Septarian Slab


Sep 114:  Septarian Concretion Slab –   Locality – Utah.  Cavity filled minerals – Yellow Calcite center, Brown Aragonite boarder.

Approximate Measurements: 5 5/8 x 4 1/2″ x 1/2″

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

Weight 1.25 lbs
Dimensions 5.625 × 5.5 × .5 in

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