Blue Forest Wyoming Petrified Wood - cut & mirror polished two sides display slab specimen. Great colors, cut, polish, structure, calcite crystals combinations. Approx size: 5" x 6" x 3. Cenozoic - Tertiary - Eocene.
Formation - Green River 50 million years. Blue Forest, Eden Valley Wyoming Petrified Wood Specimen. Eden Valley Petrified Wood was formed from plants living about 50 million years ago.
The rock exhibits features not found in fossil wood anywhere else in the world. The petrification process for this area involved shallow "algae growing" lakes.In many cases, for undetermined reasons, the wood came to be in this water in its live condition before it had a chance to dry out and look like old dead wood. This wood became coated with algae which adhered to the surface making a cast or mold around the wood. Later the wood dried and shrunk in the mold made of algae. Over time these algae casts became part of a layered rock formation. Silica-rich water solutions seeping through the rock then petrified the wood and filled in the spaces left between the dried wood and the hardened cast with agate, calcite, and quartz. Petrifying process: As the agate coated the inside surface of the algae cast, perfect impressions of the bark were left in the agate. Thus there are some rocks that show two 50 million year old "pictures" of the same plant -- one picture of how the plant looked alive and another after it died and dried out! Wormholes: Because the petrification process seems to have been "protected" by the algae cast formation, unusually detailed representations of the wood have been preserved. Lichens exquisite representations of bark both live and dried out have been preserved.
Worm holes, insect borings, woodpecker holes, and other events have been observed in the petrified wood. Even very rare lichen fossils and small clam shells have been duplicated in the agate. This item is in the category "Collectibles\Rocks, Fossils & Minerals\Fossils\Vegetation\Petrified Wood". The seller is "s7715" and is located in this country: US.
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