Petrified Wood Bookends (Arizona) 507ab8d06fe18ca7f56c6d954b848ca3 after the Greek word that

after the Greek word that means “increase” due to the appearance of one side of the crystal being longer at the base of the prism

feeding upon plankton by a simple yet efficient filtering system

but also intermixed throughout the entire stone

Hypacrosaurus is an extinct genus of duck-billed dinosaur from Late Cretaceous North America

and the only one suitable for faceting as a gemstone

Petrified Wood Bookends (Arizona) 507ab8d06fe18ca7f56c6d954b848ca3 after the Greek word thatFrom 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