Is Onyx a precious stone?

Related questions

1. Is Obsidian good luck?
2. Where is Onyx found?
3. Can you break obsidian in real life?
4. What type of rock is obsidian?
5. What is green obsidian used for?
6. How do you clean Obsidian?
7. Is Obsidian the sharpest material?
8. Is Obsidian a gem?
9. Is Blue Obsidian natural?
10. Is Obsidian the sharpest known material?

Tags

1. #banding
2. #describes
3. #described
4. #color
5. #describe
6. #white
7. #layered
8. #engraved
9. #parallel
10. #accepted
11. #occasionally
12. #gemstone
13. #banded
14. #chalcedony
15. #definition
16. #black
17. #solid
18. #stone