7.7" Colorful, Hubbard Basin Petrified Wood Stand-up - Nevada
This is a colorful 7.7" wide stand-up that's made of petrified wood from a Spruce (Picea sp.) tree, collected in Hubbard Basin, Nevada. The red, orange, and browns are accented by areas of white agate and black petrified wood preservation, with a nicely preserved knot towards the top of the specimen. This specimen has been polished to a glossy finish across one face and the base has been cut flat for presentation.
Petrified wood is the name given to wood that has been turned into stone (fossilized) through the process of permineralization. All of the organic matter becomes replaced by minerals, while much of the original structure such as tree rings in retained. For this to happen the wood needs to be buried in an environment both low in oxygen (preventing decomposition) and with flowing, mineral-laden water. The coloration is due to the various minerals that are present during fossilization. For example red colors are due to iron compounds, greens due to copper, etc.