Petrified Wood

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The process in which wood is preserved by permineralization, commonly known as petrification, takes extensive amounts of time. Gerald E. Teachout from the South Dakota Department of Game has written that "the mineral replacement process is very slow, probably taking millions of years"1.

It is true that in the laboratory petrification can be achieved in a matter of months, but petrification is far slower in natural conditions.(2)

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