火山岩包括黑曜岩火山玻璃。
在古代，黑曜岩制成了镜子。
珍珠岩矿包括珍珠岩，黑曜岩和松脂岩。
The pearl ore includes the pearlite, shines black the crag and the pitchstone.
在熔岩流单元中黑曜岩位于其顶部和底部。
The obsidian appears on the top and the bottom of lava flow unit.
黑曜岩泡沫玻璃配合料由黑曜岩废料、玻璃粉和发泡剂组成。
The batch of obsidian foam glass consists of obsidian tailing, cullent power and foaming agent.
黑曜岩火山玻璃，一般为黑色，带状，摔碎时色泽光亮，表面。
A usually black or banded, hard volcanic glass that displays shiny, curved surfaces when fractured and is formed by rapid cooling of lava.
本文介绍了黑曜岩的产生条件、物化性质、用途及产地分布，并总结了相关的考古学意义及考古学研究课题。
This paper summarize the occurrence conditions of obsidian and its physics and chemistry properties, purpose, distribution, as well as archaeological meanings and projects concerned.
本文介绍了黑曜岩的产生条件、物化性质、用途及产地分布，并总结了相关的考古学意义及考古学研究课题。
This paper summarize the occurrence conditions of obsidian and its physics and chemistry properties, purpose, distribution, as well as archaeological meanings and projects concerned.
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