Rainbow petrified wood doesn\'t get any better than this ! This specimen is from the Chinle formation in northeastern Arizona, an area famous for its varied and brilliantly colored petrified wood. It dates back to the Triassic era and is of the extinct species of tree, araucarioxylon Arizonicum. The different colors are due to the different minerals present during the petrification process. It was photographed dry. It weighs about23 lb.10oz., and measures about14\" x8\" x 3 1/4\", very roughly.I say very roughly because this piece has been contour polished, which results in a varying thickness. It is difficult to show the contoured surface in photos, but pieces like this are extremely popular.Add it to your collection as a feature display piece. As an example of shipping costs, UPS Ground to L.A. would be$26.06; Priority Mail Intl. to the U.K. would be $141.88; and UPS Standard to Canada would be $74.54. I am happy to combine items to save on shipping should you win more than one sale. Please email me with any questions.