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Product Description
Petrified Wood Unpolished Lapidary Rough Rock Utah
This lovely piece of Petrified Wood from Boulder Mountain, Utah is slabbed on one face, natural rough on the back.
The Petrified Wood rough rock piece is 3.79 inches long by 3.1 inches wide and .87 inch thick.
It weighs .44 lbs. and is shown wet in the first 4 pictures.
It is agatized and possibly translucent in some areas!
The Grand Staircase–Escalante National Monument is in southern Utah. The park features a high mesa that was once an ancient floodplain.
Boulder Mountain is a lesser-known spot for finding petrified wood here. It is the north end of the park near Boulder. This area is part of the Late Triassic Chinle Formation, about 200 million years old.
The Grand Staircase–Escalante National Monument in Utah was established in 1996. Though from 2017 the boundaries were reduced for a short period, they were restored in 2021 and collecting is illegal in the area.
This piece was from an old collection and was self-collected in the 40's or 50's, prior to the establishment of the park.
Petrified Wood formed when a tree died and was 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.
