一种蓝绿色的石头
在费伊南（Faynan）的低地地区，孔雀石的蓝绿色闪光从很远的地方就能看到，这里显然是一个进行冶金术历史研究的好地方。
The lowland district of Faynan, where the blue-green glitter of malachite can be seen from a distance, was an obvious place to study.
形成叠层石的蓝绿色藻类通过分解二氧化碳和排出氧气，从而有助于创造出我们目前的大气层。
The blue-green algae that form the stromatolites helped create our present atmosphere by breaking down carbon dioxide and excreting oxygen.
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