Gary Green Jasper, also referred to as “petrified bog wood” and / or “Larsonite” is a form of petrified wood from a location near McDermitt Oregon, on the Nevada/Oregon border. It’s believed to be wood that was covered by volcanic activity between 11-15 million years ago. The volcanic event covered this area in debris that deprived the plants of oxygen, halting the decay process. Minerals from the volcanic ash then acted as the replacement material for this petrification/mineralization, giving the wood these vibrant colors.
Freeform polished cabochon measures 3 inches by 1 1/2 inches. This has a beautiful blue and green coloration.