Petrified wood. Specimen of a fossilised piece of wood that has been preserved by petrification. Mineral quartz (silica,a form of silicon dioxide) has replaced the structures of living wood,a process that 'petrifies' the tree (turns it to stone) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Natural History Museum, London |
Bildgröße: | 4324 px × 4042 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |