Treasure Trove crossword

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Across
  1. 2. Archaeologist's favourite tool
  2. 6. Study of the ancient past
  3. 9. Place where heritage is protected
  4. 10. Valuable things
  5. 12. Northernmost Hebridean island
  6. 14. .... vacantia, ownerless property
  7. 15. 2014 Viking hoard discovery place
  8. 16. A discovered object
  9. 17. Everyone's favourite country!
Down
  1. 1. A piece of broken pottery
  2. 3. Archaeological dig
  3. 4. Early Medieval peoples of Scotland
  4. 5. Alloy of copper and tin
  5. 7. Arrived in Scotland in the 1st Century AD
  6. 8. A period in time
  7. 11. Group that allocates finds to museums
  8. 13. A money disc
  9. 14. Clothes fastener