Meaning of pitchstone

1. The archaeologist found a piece of pitchstone near the ancient volcano.
2. Pitchstone is formed when lava cools quickly, creating a glassy texture.
3. The Native Americans used pitchstone to make tools and weapons.
4. The pitchstone knife was sharp and durable.
5. The geologist studied the properties of pitchstone to learn more about volcanic activity.
6. The pitchstone deposits in the area were evidence of past volcanic eruptions.
7. The jewelry maker crafted a beautiful pendant from a piece of polished pitchstone.
8. The hiker discovered a vein of pitchstone while exploring the mountain.
9. The museum had a display of ancient pitchstone artifacts.
10. The artist used pitchstone in their sculptures to add a unique texture and color.