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This piece of petrified wood from the Panoche Hills of central California dates from the latest Cretaceous (about 66 million years ago). The log it once belonged to floated into the sea, where small mollusks ... Fossils; Geologic Features and Processes; Glaciers and Ice; Landforms; Minerals; Rocks; Geology and Society...
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geology.about.com/library/bl/images/blfossilwood.htm
geology.about.com/library/bl/images/blfossilwood.htm
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When a fossil organism is subjected to mineral replacement, it is said to be petrified. For example, petrified wood may be replaced with chalcedony, or shells replaced with pyrite. This means that out of all fossils, only the creature itself could be fossilized by petrification.
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geology.about.com/cs/basics_life/f/faq5petrify.htm
geology.about.com/cs/basics_life/f/faq5petrify.htm
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Petrifaction - Wikipedia, the free encyclopedia
In geology, petrifaction , petrification or silicification is the process by which organic material is converted into stone by impregnation with silica. It is a rare form of fossilization. Petri...
en.wikipedia.org/wiki/Petrifaction
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Petrified wood - Wikipedia, the free encyclopedia
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Petrified wood (from the Greek root "petro" meaning "rock" or "stone", literally "wood turned into stone") is a type of fossil: it consists of fossil wood where all the organic materials have been re...
en.wikipedia.org/wiki/Petrified_wood
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Moab Brushy Basin Fossil Gift Shop specializes in agate dinosaur fossils, coprolites and petrified wood, agate fossil gemstone cabochons and silver jewelry, also designed 'just for you' handcrafted jasper and Yellow Cat redwood Sterling silver jewelry. ... Our Brushy Basin Jurassic Fossil Gifts include agatized dinosaur fossils,
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Treasures of the Earth, Ltd is your online retailer for authentic fossils, minerals, petrified wood, stone, bronze, and wood statues, fossil replicas, shells, architectural items and information. Wholesale prices are also available!
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www.universaltreasures.com/
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Buy Petrified Wood, Fossils, Minerals, Culteral Artifacts, and other Decorative Items. ... Treasures of the Earth Ltd is your online retailer for authentic fossils, minerals, petrified wood, stone, bronze, and wood statues, fossil replicas, shells, architectural items and information. Wholesale prices are also available!
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www.universaltreasures.com/wood.htm
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Although some rare dinosaur fossils have been found recently in Japan, fossil resources are poor by nature here in quantity and quality. In addition, I do not have enough time to do it rightly, so I cannot but buy some good fossils during my journey, especially to US. ... HERE is What's Petrified Message Board!!
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www.5eggs.com/petrified/
www.5eggs.com/petrified/
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Petrified wood is an example of a permineralized fossil. Replacement fossils are formed when ground water first dissolves out the tissue and then leaves minerals in their place. Both types of petrification fossils are generally composed of either SiO2 or CaCO3.
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cas.bellarmine.edu/tietjen/images/fossil_types.htm
cas.bellarmine.edu/tietjen/images/fossil_types.htm
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