Petrified Wood
Mount Adams, Yakima County, Washington, USA
A cut section of an Opalized limb. The Opal preserves the rings of the wood and the brown portion of the sample is translucent. The outer surface of the cut is micro-porous and not waxy, as Chalcedony would be. Mustoe and Dillhof (2022) illustrate a similar sample with the outer, opaque, layer being Opal-CT and the interior, translucent, zone ...