这把刀的刀刃是用黑曜石制成的。

The blade of this knife is made of obsidian.

他收藏了很多不同颜色的黑曜石。

He collects many different colors of obsidian.

黑曜石常用于制作装饰品和工具。

Obsidian is often used to make ornaments and tools.

古代人用黑曜石制作锋利的工具。

The ancient people used obsidian to make sharp tools.

黑曜石是一种天然形成的火山玻璃。

Obsidian is a naturally occurring volcanic glass.

黑曜石可以在有火山活动的地区找到。

Obsidian can be found in areas with volcanic activity.

博物馆有一批稀有的黑曜石文物收藏。

The museum has a rare collection of obsidian artifacts.

艺术家用黑曜石雕刻了一尊美丽的雕像。

The artist carved a beautiful statue out of obsidian.

他们在山顶发现了一块巨大的黑曜石。

They found a huge piece of obsidian at the mountain top.

黑曜石因其光亮的外观常用于珠宝制作。

Obsidian is often used in jewelry due to its shiny appearance.