Petrified Wood Bookends (Arizona) 507ab8d06fe18ca7f56c6d954b848ca3 aqua marina meaning "water of

aqua marina meaning "water of the sea" in Latin

Stegosaurus is a genus of herbivorous thyreophoran dinosaur

the amount of Neanderthal at any given time was remarkably small

and the only one suitable for faceting as a gemstone

feeding upon plankton by a simple yet efficient filtering system

Petrified Wood Bookends (Arizona) 507ab8d06fe18ca7f56c6d954b848ca3 aqua marina meaning "water ofFrom ancient Greek meaning "wood turned into rock", Petrified Wood is a form of fossilization where all the organic matter combines with minerals (usually a silicate, such as quartz) during a process called per mineralization. In order for wood to become petrified it must be completely covered by sediment, thereby depriving the wood of oxygen. Simultaneously, there must be a mineral rich water source close by. Over time, the water delivers the