木化石 - 化石木材 (没有保留价)

来自马达加斯加的极为保存完好的化石木片。时代：下侏罗纪。颜色美丽，木纹清晰且保存完好，质量真的非常出色。
Note the beautiful mineral crystallization created over millions of years inside the cracks of the wood
这是来自马达加斯加Ambilobe的广圆形化石木（Araucaria 属）。Araucaria 是一种针叶树，属于包含现代猴面包树的科。
这块约2.2亿年的化石木已在两面切片打磨，便于清晰地看到内部木纹细节与美丽的着色。
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/impurities present in the water during fossilization. For example, red colors in many cases can be attributed to iron compounds, greens due to copper, and so on