Is there black gold?

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Tags

1. #nearly
2. #color
3. #covers
4. #turning
5. #different
6. #black
7. #reality
8. #method
9. #scientists
10. #change
11. #rhodium
12. #discovered
13. #recently
14. #according
15. #plating
16. #simply
17. #metal
18. #making
19. #colored