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Product Description
Limb Cast Polished Petrified Wood Collector Crooked River Oregon
This is a lovely limb cast polished petrified wood round and it is slabbed and polished on one face, left natural rough elsewhere.
The gorgeous, translucent polished stone face is 4 inches by 2.8 inches wide and it is .56 inch at its thickest.
It does not stand on its own. This is old stock, self collected probably in the 50's or 60's and labeled on the back.
This limb cast has many tiny tube-like green filaments. It is from the John Day Formation, South Fork of the Crooked River in Crook County, Oregon.
It is from the Oligocene epoch, about 33.9 million to 23 million years ago.
Petrified Wood formed when a tree died and was quickly buried by sediments. Minerals in the groundwater then permeated the wood, replacing the original organic matter and turning it to stone.
This is a “limb cast” as the wood decayed before the replacement occurred and so none of the characteristics of the original wood are present.
