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SEP408 Septarian Free Form

SEP408 Septarian Free Form


This is a very nice Septarian Free Form from Madagascar.  This beautiful specimen has lots of Brown Aragonite with contrasting Yellow Gold Calcite in a very nice design. It measures 2 3/8″ x 1 3/4″ x 4 1/2″ with a nice polish on all sides.  Very cool!!

In stock


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

Weight1.25 lbs
Dimensions2.375 × 1.75 × 4.5 in

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