Petrified Araucaria tree stump from Madagascar. The Araucaria's internal rings and vascular tissues of the cut and polished section reveal the life of the monkey puzzle, araucaria genus trunk. The cut face now polished to a high finish allowing the mineral inclusions, permineralisation by silica and calcium carbonate which were absorbed by the once living tissues of the araucaria tree after deposition in the forest floor millions of years ago. The tree trunk now turned to stone, petrified, the process of petrification and fossilisation creating a remarkable work of natural art.
This attractive araucaria fossilised wood section has very interesting and attractive colourings of predominatly creams and very subtle pale lime greens with hints of rose pink on the polished surface. The surrounding bark has also been preserved from the ancient buried forest where in our modern times the discovery of the prehistoric forest in Madagascar was made.
Madagascar provides from its ancient fossilised forests wonderful selections of petrified wood. Many specimen fossil woods show none or little detailed cell structure or tree rings however on occasion we see pockets of fossil wood with well-preserved cells.