Petrified Sequoia Wood Sphere, Sequoia, Miocene. Vantage, Washington

Fossilized Sequoia wood is rarely encountered. This large sphere, made up of 12 -5 million-year-old fossilized Sequoia wood from Vantage, Washington, displays white and varied brown hues, and clearly exhibits the growth rings of the tree. Offered on a custom wooden swivel stand. Diameter measures 6in - Sold for $915

Natural History, 1 Jun 2009. New York. www.bonhams.com