黑曜石

例句：

1. 1. The black obsidian slab was the centerpiece of the room.
   那块黑色的玄武岩石板是房间的焦点。
2. 2. The jet black stone is inlaid with intricate patterns.
   那块漆黑如墨的石头上镶嵌着复杂的图案。
3. 3. The black obsidian sword was passed down through generations as a symbol of strength and power.
   那把漆黑如墨的剑代代相传，象征着力量和权力。