3.8" Petrified Wood Limb Cast Section - Oregon

This is a 3.8" wide, banded agate limb cast of petrified wood that was collected from the Crooked River in Oregon. The agate has gorgeous bands of faint-blue and colorless agate that replaced the petrified wood. There are also calcite crystals scattered throughout the agate that fluoresce a vibrant orange color under both short and longwave UV.

It comes with an acrylic display stand.

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.
Chalcedony var. Agate & Calcite
Crooked River, Oregon
3.8 x 3.5", up to 1" thick