Rock

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Across
  1. 1. A soft mineral used in making plaster and drywall.
  2. 3. A fine-grained, translucent form of gypsum.
  3. 4. A type of limestone that contains magnesium.
  4. 8. A sedimentary rock composed mainly of the mineral dolomite.
  5. 10. A sedimentary rock, often used in building materials.
  6. 12. A light-colored volcanic rock with high silica content.
  7. 15. A sedimentary rock composed mainly of sand-sized particles.
  8. 18. The process by which rocks change form due to heat or pressure.
  9. 20. A fine-grained rock formed from compacted silt.
  10. 21. A small, rounded stone often found in riverbeds.
  11. 23. A hard, compact mass of mineral matter.
  12. 26. A hard, metamorphic rock formed from sandstone.
  13. 27. A volcanic glass formed from rapidly cooling lava.
  14. 29. A carbonate mineral often found in marine environments.
  15. 31. A volcanic rock, typically found in volcanic arcs.
  16. 32. A coarse-grained igneous rock, similar to basalt.
  17. 33. A hard, durable rock often used in countertops.
  18. 34. Small pieces of rock or ash from a volcanic eruption.
  19. 35. A rock formed from volcanic ash and debris.
Down
  1. 2. A fine-grained rock that can be split into layers.
  2. 3. A hard, high-grade form of coal that is shiny and black.
  3. 5. A hard, sedimentary rock used for making tools.
  4. 6. A coarse-grained sedimentary rock made of rounded particles.
  5. 7. A soft mineral, often used in talcum powder.
  6. 9. An iron oxide mineral often found in sedimentary rocks.
  7. 11. A human-made pile of stones, typically used as a marker.
  8. 13. A metamorphic rock that can be split into thin layers.
  9. 14. A common volcanic rock that is dark and dense.
  10. 15. Layers of rock, typically visible in cliffs or canyons.
  11. 16. A metamorphic rock often used in sculptures and tiles.
  12. 17. A soft, white, sedimentary rock, often used in writing.
  13. 19. A large rock, often found in mountainous regions.
  14. 21. A light, porous volcanic rock formed by rapid cooling.
  15. 22. A metamorphic rock with visible layers or bands.
  16. 24. A mineral commonly found in igneous rocks, often clear.
  17. 25. A rare, metallic mineral often found in igneous rocks.
  18. 28. A type of clay formed from volcanic ash.
  19. 30. Particles of rock that are deposited by wind, water, or ice.