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Please Be Gneiss! Crossword Puzzle

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Several rocks and a few minerals appear in this puzzle. Get your pickaxe ready and get to solving!
Author: pusdoc - Diff: Harder

ACROSS

    DOWN

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    • Complete Clue List

      Across
      1. Sedimentary rock that may contain oil
      6. Giant seaweed, plural
      9. Language of Bangladesh
      10. Source of tequila
      11. Organized yet intense personality, 2 words
      12. Prismatic display in the sky
      13. Defecate
      16. Pele's first name
      19. Combining form meaning "bone"
      22. Igneous rock seen at the Giant's Causeway
      23. Dark igneous rock with lots of cavities from bubbles
      24. The matter at hand
      25. Slow-cooling, coarse-grained igneous rock
      26. Igneous rocks with lots of silica are called this, no relation to pH
      27. Sleeping bull?
      30. Hooded snake
      33. District of Lisbon with a famous tower and monastery
      36. Coarse-grained igneous rock from which curling stones are made
      37. Biblical city of King Og
      38. Gnasty villian in Spyro games
      39. Sedimentary rock from peat
      40. Squiggle seen in Spanish
      41. Limestone towers seen in Mono Lake

      Down

      1. Metamorphic rock formed from 1 across
      2. Colorful, banded rock of chalcedony and quartz
      3. Thumbs up critic Roger
      4. Metamorphic rock that is a homophone
      5. Metamorphic rock useful in art and architecture
      6. Second largest city in Zambia
      7. First word of a deep blue metamorphic rock
      8. Metamorphic rock formed in high temperature regions through metasomatism
      14. Camelid from South America
      15. Froth at the mouth
      17. Intrusive igneous rock with moderate silica
      18. Magnesium iron silicate mineral; when clear forms peridot
      19. Unruh who invented the T-wing offensive formation (first name + initial)
      20. Many colored gemstone, Mohs 8
      21. Cichlid fish or Hollywood award
      28. Non-rhyming color
      29. Bring forth
      30. Rock used for tool-making
      31. Mineral constituent of many colorful gemstones
      32. Limber
      33. Biblical verb meaning to sire a child
      34. Last name of French microbiologists Andre and Marguerite; he won a Nobel, she was snubbed
      35. Foliated silicate minerals (plural form)