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PR510 Septarian Slab

PR510 Septarian Slab

$45.00

PR510: Septarian Slab. – Locality: Utah   Selection: Polished and rough specimen.

Appearance: Yellow Calcite center with contrasting Brown Aragonite. It fluoresces a pretty green under S/W UV light.

Approximate measurements: LxWxH – 7 3/4″ x 1/2″ x 5 1/4″.

Availability: single specimen, exclusive.

Have a look at some of our other Septarian pieces!

In stock

Description

Septarians are commonly composed of a carbonate mineral such as Calcite, a microcrystalline form of Silica as in Flint or Jasper, or an Iron Oxide such as Hematite.  These specimens are also known as a concretion which is a type of sedimentary rock. Septarians were formed millions of years ago by sediment forming around a fossil to create a mud ball transforming the fossil into Calcite and Aragonite.

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