Why is the black pearl black?

Related questions

1. Do squid have bones?
2. Is the kraken a squid or octopus?
3. Who killed Governor Swann?
4. Do octopi have feelings?
5. Are squid smart?
6. Are giant squids dangerous to humans?
7. Are squids smart?
8. Is Pirates of the Caribbean based on a true story?
9. Are squids edible?
10. Are squids dangerous to humans?

Tags

1. #stuck
2. #thick
3. #features
4. #lipped
5. #piece
6. #formed
7. #usually
8. #pinctada
9. #oyster
10. #black
11. #shell
12. #called
13. #interior
14. #white
15. #oysters
16. #tahitian
17. #margaritifera
18. #specific
19. #silver
20. #nacre
21. #glossy
22. #pearls