Across
- 2. wiring
- 3. an actor
- 6. pebble
- 7. takes millions of years to form
- 10. most abundant element in earth's crust
- 12. the densest natural element
- 13. the most complex mineral
- 14. scrooge Mcduck loves this
- 15. boulder
- 16. green green green green green
Down
- 1. the most common mineral
- 4. you know this one from a game called minecraft
- 5. was used during the aztec empire
- 8. the hardest thing
- 9. has a lot of calcium
- 10. the longest word ever
- 11. helps our immune system
- 17. rock