Across
- 2. naturally occurring solid that can form by inorganic processes and has a crystal structure and a definite chemical composition
- 4. this describes the thin, flat layering found in most metamorphic rocks
- 6. this type of rock forms when rock fragments are squeezed together
- 7. not part of living things
- 8. the look and feel of a rock’s surface
- 10. type of rock formed when magma hardened under Earth's surface
- 11. the color of the mineral’s powder
- 13. when a mineral breaks apart in an irregular way
- 16. type of rock formed when lava erupted onto Earth's surface
- 17. a mixture where one substance dissolves in another
- 19. rounded, hollow rock that is often lined with mineral crystals
- 20. __________________ hardness scale is used to rank the hardness of minerals
Down
- 1. ____________________ rock forms when small particles of rocks or the remains of plants and animals are pressed and cemented together
- 3. how light is reflected from a mineral’s surface
- 5. _____________________ rock forms from the cooling of magma or lava
- 6. a property that describes a mineral splits easily flat along surfaces
- 9. the effects of freezing and thawing, plant roots, acid, and other forces on rock
- 12. particles of minerals or other rocks
- 14. this type of rock forms when minerals dissolve in a water solution crystallize
- 15. process by which sediment settles of out the water or wind carrying it
- 18. _____________________ rock forms when a rock is changed by heat/pressure or by chemical reactions
