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PETRIFIED WOOD LOG. ...
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PETRIFIED WOOD LOGunidentified species
Triassic
Indonesia
This elegant log section is from the beautiful petrified wood deposits of Indonesia. Millions of years ago, the area was blanketed with thick rainforest and dotted with volcanoes. When the volcanoes erupted, some of the trees that grew on their slopes were instantly destroyed, but others at a slightly greater distance were completely buried in silica rich volcanic ash. This protected the wood from the elements and prevented their decay, and slowly, over millions of years, the silica minerals (quartz, chalcedony, jasper) were carried by water seeping into the wood and replaced the structure of the original tree on a microscopic level, atom by atom. So fine is this process of replacement that the cellular structure can still be observed. Much petrified wood from this area is coarse-grained, making it hard to polish, but the present example is from a fine-grained wood and has been polished to a fine almost translucent enamel-like finish all around. The original contours of the trunk have been retained, however, and with the grain still visible to the naked eye and beautiful patination in soft shades of creamy grey flecked with orange and patches of rich dark chocolate brown, it retains the unmistakable appearance of wood. The upper surface has also been polished, perfectly exhibiting the inner structure of growth rings. This superb natural sculpture measures 26 x 13½ x 11 inches.
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