Across
- 3. the hardest mineral
- 5. when a mineral breaks predictably
- 9. when a mineral breaks randomly
- 10. dark colored igneous rocks
- 12. type of rock formed from heat and pressure
- 15. a rock made from pebbles
- 16. this mineral reacts with acid
- 17. gypsum and rock salt form when this happens
- 19. the way a mineral reflects light
- 21. this mineral solidifies first according to Bowen's Reaction series
- 22. fools gold
- 23. type of rock formed from lava or magma
Down
- 1. limestone and dolostone can turn into this type of rock
- 2. this is not a mineral because it used to be alive
- 4. gas pockets
- 6. this mineral solidifies last
- 7. type of rock formed from cementation of sediment
- 8. when the minerals in a metamorphic rock separate by color
- 11. mineral alignment
- 13. this is the name of the hardness scale
- 14. light colored igneous rocks
- 17. a rock that forms at or near the surface
- 18. when the rock forms inside the earth and has large crystals
- 20. this mineral has a strong red brown streak