Pillar of fossil wood, 11x5x40cm, dark- brown petrified wood

Fossilised wood or otherwise fossil wood is also petrified wood among the unique features up to 200million years old. Cemical elements, such as manganese,iron and copper, that occur in water or swamp during the process of fossilization, give the wood a wide variety of different colours. Fossilized wood retains its original structure in the process. On the toughness scale F. Mohse bears the designation number 7, as does quartz. Although it is very hard, it is also very fragile. In the world, fossil wood is highly valued.