Also, in terms of ancient stone tools, they're gonna use things like obsidian, it's volcanic glass.

此外，就古代石器而言，他们会使用黑曜石，山玻璃。

Found in modern day Turkey, these primitive mirrors were made out of a polished volcanic glass called obsidian.

在现代的耳其发现，些原始的镜子由做黑曜石的抛光山玻璃制成的。

The villagers harvested wheat, raised animals and used simple tools made of bone and volcanic glass.

村民们收割小麦，饲养动物，并使用由骨头和山玻璃制成的简单工具。