5.8" Cretaceous Petrified Wood (Aruacaria) Slab - Australia

This is a 5.8" polished slab of petrified conifer wood (Aruacaria) from Australia. It is Late Cretaceous in age, or approximately 113 million years old. The polish work really brings out the excellent wood grain detail and it has been cut into a thick slab.

It comes with an acrylic display stand.

Petrified wood is the name given to wood that has been turned into stone (fossilized) through the process of permineralization. In this process, all of the organic matter becomes replaced by minerals, while much of the original structure, such as tree rings, is retained. For this to happen, the wood needs to be buried in an environment low in oxygen to prevent decomposition and with flowing, mineral-laden water, so minerals may replace structures. The coloration is caused by various minerals that present in that water during fossilization. For example, red colors are due to iron compounds, greens due to copper, and so on.
Aruacaria sp.
Jacobs Gully, Mooka Station, Western Australia
Windalia Radiolarite Formation
5.8 x 4.6", 1.2" thick
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