Is a ring fake if it turns your finger green?

Related questions

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4. How does gold get to the surface?
5. Is real gold magnetic?
6. Does hand sanitizer ruin wedding rings?
7. Does cubic zirconia turn green?
8. Is 10k gold real gold?
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Tags

1. #metal
2. #another
3. #chemical
4. #cause
5. #reaction
6. #because
7. #lotion
8. #silver
9. #substance
10. #acids
11. #either
12. #which
13. #between
14. #green
15. #turns
16. #oxidize
17. #finger
18. #produces
19. #tarnish