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Across 1. Sedimentary rocks formed from rock particles 5. Igneous rocks cooled on the surface 7. Where the hanging wall moves upward (7,5) 8. Most abundant element in the crust 10. Molten rock on the Earth's surface 12. The mountains at divergent plate boundaries (5,5) 13. The stress that causes strike-slip faults 14. The least useful property used to identify minerals 16. These soils engineering properties are determined by particle shape 17. Soil transported by wind 22. The most important weathering agent 23. Difference between graphite and diamond (6,9) 25. The direction of the intersection of a folded rock with the horizontal 28. A metamorphic rock rich in mica 29. The force that causes reverse faults 30. Where the hanging wall moves downward (6,5) 31. Axial line of a syncline 35. Two tectonic plates moving apart 36. A rock altered by heat and/or pressure 41. Axial line of an anticline 42. Boundaries between the Earth's layers 46. The shape of the Earth 47. Sedimentary rocks formed from skeletons 49. Causes volcanoes that are not at plate boundaries (3,4) 50. Cuts through country rock 52. What minerals form given time and space 53. Characteristic of regional metamorphic rocks 55. Metamorphic rock type caused by high pressure 56. The most common type of rock in the Earth's continental crust 57. Quality of the reflected light 58. Foreign rock 59. Only common non-silicate mineral 61. The mountains at convergent plate boundaries 62. The parent rock of marble 64. A solid, naturally occurring, inorganic solid of definite chemical composition 65. These soils engineering properties are determined by mineral composition 66. The softest mineral

Down 1. Tendency of a mineral to break along a smooth plane 2. Sedimentary rock made up of pieces of rounded gravel 3. The most common type of rock in the Earth's oceanic crust 4. A sedimentary rock layer is younger than the layer below it 6. The hardness of quartz 8. Mineral the upper mantle is comprised of 9. The ratio of mass to volume 11. Rock fractures displaying no movement 13. A low grade metamorphic rock 15. Soil transported by gravity 17. Soil transported by fresh water 18. Darker minerals in an igneous rock 19. Aggregates that love water 20. The steepest angle of descent of a tilted rock stratum 21. Divergent oceanic plates cause this (3,5,9) 24. Any xenoliths trapped in a body of rock must be older than that rock 25. The colour of the powdered mineral 26. Quartz in granite 27. Two tectonic plates colliding 32. Lighter minerals in an igneous rock 33. Fire rocks 34. Metamorphic rock type caused by high heat 37. The rock folds upward 38. Rock fractured by movement 39. Underground igneous rock body 40. Most common mineral group in the Earth's crust 41. The force that causes normal faults 43. Sedimentary rocks formed from dissolved minerals 44. Aggregate particle much smaller in one dimension 45. The parent rock of quartzite 46. Aggregate particle much longer in one dimension 48. A strongly magnetic mineral 49. The resistance of a mineral to being scratched 50. The hardest mineral 51. Sedimentary rock made up of calcite 53. Rock bent, not fractured 54. The rock folds downward 55. Soil that has not been eroded 56. A high grade metamorphic rock 60. Follows country rock 63. Mineral group having perfect cleavage in one plane