Petrified wood

Fossilized remains of plants

Petrified wood is the name given to a special type of fossilized wood, the fossilized remains of terrestrial vegetation. Petrifaction (from Ancient Greek πέτρα meaning 'rock' or 'stone'), is the result of a tree or tree-like plants having been replaced by stone via a mineralization process that often includes permineralization and replacement. The organic materials making up cell walls have been replicated with minerals (mostly silica in the form of opal, chalcedony, or quartz).

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