Rocks

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Across
  1. 1. Minerals that include several closely related materials.
  2. 2. A Igneous rock typically composed largely of plagioclase with pyroxene and olivine.
  3. 4. A dark green mineral consisting of hydrated magnesium silicate, sometimes spotted like a snake's skin
  4. 7. Formed through tectonic forces or volcanism.
  5. 9. The change of chemicals or Geologic texture
  6. 10. A metamorphic rock formed by the contact between mudstone, shale, or other clay rich, rock.
  7. 11. The breaking down of rocks, soil, and minerals.
  8. 12. The outermost solid shell of a rocky planet or natural satellite.
  9. 15. A metamorphic rock formed by ductile deformation of a protolith with a large shear strain.
  10. 17. Removes soil, rock, or dissolved material from one location on the Earth's crust to another location.
  11. 18. A solid mineral material forming part of the Earth's surface.
  12. 19. Formed by the deposition of material at the Earth's surface and within bodies of water.
  13. 22. A metamorphic rock which is largely composed of the mineral talc and thus is rich in magnesium.
  14. 23. A detrital sedimentary rock, specifically a type of sandstone containing at least 25% feldspar.
  15. 27. A naturally occurring material that is broken down by processes of weathering and erosion.
  16. 31. A hard non-foliated metamorphic rock which was originally pure quartz sandstone
  17. 32. A dark igneous rock composed of calcium plagioclase, pyroxene, and minor olivine, but no quartz.
  18. 33. A sedimentary rock composed of mud that is a mix of flakes of clay minerals and tiny fragments.
  19. 34. A metamorphic rock that has a hard compact variety of coal and has a sub metallic luster, also has the highest carbon content.
  20. 36. The result of magma reaching the surface either as lava or fragmental ejecta.
  21. 38. A type of foliated metamorphic rock created from slate that is further metamorphosed.
  22. 39. A Igneous rock that is granular and phaneritic in texture.
Down
  1. 1. The transformation of a pre-existing rock.
  2. 3. A fine-grained Sedimentary rock consisting of consolidated silt.
  3. 5. A rupture in the crust of a planetary-mass object.
  4. 6. It's different from a rock, and does not have a specific chemical composition.
  5. 8. Formed through the cooling and solidification of magma or lava.
  6. 13. The remains or impression of a prehistoric plant or animal embedded in rock and preserved to petrified form.
  7. 14. A sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate.
  8. 16. The original unmetamorphosed rock from which a given metamorphic rock is formed.
  9. 20. A technique used to purify chemicals
  10. 21. A metamorphic rock form characterized by banding caused by segregation of different types of rock.
  11. 24. A sedimentary rock composed mainly of sand-sized minerals or rock grains.
  12. 25. An extremely fine-grained sedimentary rock consisting of a mixture of clay and silt-sized particles.
  13. 26. A metamorphic rock form of limestone, typically white with colored mottling(s) or streaks.
  14. 28. A fine-grained grey, green or bluish-purple metamorphic rock easily split into smooth, flat plates.
  15. 29. Mixture of molten or semi-molten rock.
  16. 30. A group of changes.
  17. 35. Study of rocks
  18. 37. A metamorphic rock typically containing muscovite, biotite, chlorite, and quartz