Beautiful green, blue and black precious opal shows in the cracks , crevices, and worm holes found in this Miocene era petrified wood from the Bonanza Mine in Virgin Valley, This rare specimen shows the evidence of worms attacking the wood when it was alive. Probably a Sequoia type conifer that was prevalent in that area and at that period of history 14 million years ago. Not often found this size with such beauty it would be an outstanding specimen for your collection.