Rocks

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