Across
- 5. Scientific word for heft/weight
- 10. Rocks changed by heat/pressure
- 12. Igneous rocks cooled outside
- 13. To break along flat atomic surfaces
- 17. NaCl in natural mineral form
- 18. Scale for mineral hardness
Down
- 1. Green form of Beryl gemstone
- 2. Layers of rock cemented together
- 3. Red corundum
- 4. Dark colored igneous rock
- 5. Scientific formula for Quartz
- 6. Yellow/brown Quartz
- 7. Looking like metal
- 8. Not a diamond but still carbon
- 9. 2.5 on the Mohs scale
- 11. Actual color of mineral
- 14. Very common igneous rock
- 15. Only found in sedimentary rocks
- 16. 10 on the Mohs scale