Puzzle 19

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Across
  1. 1. Black layered stone
  2. 3. Smooth gem from oyster
  3. 5. Common mineral crystal
  4. 7. Green precious gem
  5. 8. Purple quartz crystal
  6. 9. Red precious gem
Down
  1. 1. Gem with many colors
  2. 2. Yellow gemstone
  3. 4. Variety of quartz
  4. 6. Blue precious stone