Petrified Wood Bookends (Miles Form., Australia) ce809202592053e9621b108fbc302a10 Trilobites are are important as

Trilobites are are important as paleo-zoic guide fossils

Emerald is the traditional birthstone for the month of May

Before Megalodon

derived from trace amounts of Iron

5 - 7 on the mohs scale

Petrified Wood Bookends (Miles Form., Australia) ce809202592053e9621b108fbc302a10 Trilobites are are important asFrom 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