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Product Description
Petrified Wood Polished Rock Stump Saddle Mountain Washington
This is a nice sliced and polished on one face and "bark" everywhere else stump of Petrified Wood from Saddle Mountain, Washington.
The natural Petrified Wood slab is 4.85 inches and by 2.59 inches and 3.22 inches thick.
This one is polished, but not very well. It could be slabbed into rounds or cut into cabochons.
This petrified wood piece is from the Kirkby collection and was self-collected sometime in the 1930's to the 1960's.
Saddle Mountain Petrified Wood is found in the Columbia River Basalt Formation in Grant County, Washington.
Much of the petrified wood found at Saddle Mountain is distorted stumps. Complete rounds are rarer, particularly in larger sizes.
From the Miocene epoch of the Cenozoic era, about 15 million years old.
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. The main mineral is silica, but trace elements in the silica create a variety of colors.
