National Park Service, U.S. Department of the Interior National Park Service arrowhead

Petrified Forest National Park

This close-up of a polished section of petrified wood, Araucarioxylon arizonicum, shows the rainbow of color caused by presence of iron oxide, manganese oxide, and other minerals.

Petrified Wood Closeup:

This close-up of a polished section of petrified wood, Araucarioxylon arizonicum, shows the rainbow of color caused by presence of iron oxide, manganese oxide, and other minerals.

(NPS Photo).
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www.nps.gov/parkoftheweek/photo-427.htm Updated: Monday, 09-May-2005 18:37:34 EDT