Across
- 1. A hollow rock with crystal formations inside.
- 3. The way a mineral reflects light (e.g., metallic, glassy).
- 5. Mass per unit volume of a mineral.
- 6. A naturally occurring, inorganic solid with a crystal structure.
- 10. Rock changed by heat and pressure.
- 13. Rock formed from cooled magma or lava.
- 14. A mineral that reacts with acid and has perfect cleavage.
- 18. The breakdown of rocks into smaller pieces.
- 19. A measure of how resistant a mineral is to scratching.
- 22. The tendency of a mineral to break along smooth surfaces.
- 24. The color of a mineral’s powder when scratched on a streak plate.
- 25. The process where dissolved minerals bind sediments together.
- 26. The process of rocks being worn down by wind, water, or ice.
- 29. A metamorphic rock formed from shale.
Down
- 2. A rock containing valuable minerals.
- 4. Rock formed from compacted sediments.
- 7. Molten rock beneath the Earth's surface.
- 8. The process of sediments being pressed together.
- 9. Scale A scale that ranks minerals by hardness from 1 to 10.
- 11. Preserved remains or traces of ancient life.
- 12. The way a mineral breaks unevenly.
- 13. Igneous rock formed inside the Earth (e.g., granite).
- 15. Molten rock that has erupted onto the surface.
- 16. A solid where atoms are arranged in a repeating pattern.
- 17. Layering in metamorphic rocks.
- 20. Cycle The process of rock formation and transformation.
- 21. A common silicate mineral with a glassy luster.
- 23. Igneous rock formed from lava on the surface (e.g., basalt).
- 27. A fine-grained, dark igneous rock.
- 28. A coarse-grained igneous rock.