5.1" Polished Petrified Chrysocolla Wood End-Cut - Indonesia

This is 5.1 x 3.6" by 3.1" thick, polished end-cut of petrified chrysocolla wood from Indonesia. This rare petrified wood exhibits a mixture of chalcedony and chrysocolla replacement, with small spots of green malachite. Wood grain detail can be seen along one edge of this specimen. This likely occurred as a result of the wood being preserved in a copper-rich environment, similar to "colla-wood" from Turkey.

Petrified wood is the name given to wood that has been turned into stone (fossilized) through the process of permineralization. All of the organic matter becomes replaced by minerals, while much of the original structure such as tree rings in retained. For this to happen the wood needs to be buried in an environment both low in oxygen (preventing decomposition) and with flowing, mineral-laden water. The coloration is due to the various minerals that are present during fossilization. For example red colors are due to iron compounds, greens due to copper, etc.

Chrysocolla & Malachite
5.1 x 3.6", up to 3.1" thick
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