Rainbow Petrified Bookends
Arizona petrified wood bookends. Amazing rainbow colors formed naturally by Mother Nature!
Size of Petrified Wood Bookends: 11" x 8" x "
(Set of 2)
Petrified wood is made up of almost solid quartz. The colors are produced by impurities in the quartz, such as iron, carbon, and manganese. Over 200 million years ago, the logs washed into an ancient river system and were rapidly buried deep enough by sediment and debris also carried in the water. Oxygen was cut off and decay slowed to a process that would now take centuries. Minerals, including silica dissolved from volcanic ash, absorbed into the porous wood over thousands of years crystallized within the cellular structure, replacing organic matter over time.