Petrified Golden Oak Wood Stone Sphere Fossil. This Petrified Wood Golden Oak stone sphere is 2.4 inches or 62 mm in diameter. It does have natural surface flaws and rough spots. Known as Golden Oak because of its golden color, this is a Miocene-epoch petrified oak tree. It is about 15-30 million years old and comes the well known Stinking Water area of Oregon. Tree trunks were buried under several hundred yards of sediment. Over the course of time the wood was replaced by cryptocrystalline quartz, largely chalcedony and jasper. During the replacement process by silica carried in underground waters, even the most minute details of the woody structure was preserved. Metaphysical Properties: Petrified Wood is a stone of patience and slow and steady growth. Listing and template services provided by inkFrog.