Across
- 6. under the earth surface
- 7. cycle of rocks
- 9. measure hardness of a mineral
- 12. study of the earth
- 13. australia has the most of that gemstone
- 15. mostly dark and gray colour
- 16. lightest mineral on the mohs scale
- 18. a common metamorphic rock
- 20. are grey in colour due to weathering and erosion
Down
- 1. changes from magma
- 2. mostly used for jewelry
- 3. made out of sediments
- 4. are made up of calcium carbonate
- 5. hardest on the mohs scale
- 8. solid material that settles at the bottom of a liquid
- 10. a common igneous rock
- 11. are mostly black due to the magma
- 14. mistake for gold
- 17. a common sedimentary rock
- 19. one component of the earth crust