The wood in the first phase of fossilisation, found on the bottom of a river, is an ancient material, often dating back to the period of the glaciations, taken from trees buried and preserved by substances contained in the soil, in turn submerged by water. The fossil wood deposits are mainly found in the Balkan region and in particular near the Sava river. The sub-fossilisation process, with a reduced presence of oxygen, maintains the properties of the original wood but at the same time increases its hardness. Each specimen of fossil wood is absolutely unique and conveys emotions that no other material in the world can give. 