Puzzle # 4 - Secrets of the Alchemists

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Across
  1. 2. Transmutation goal
  2. 5. Alchemical planet
  3. 6. Sacred flame
  4. 10. Hidden substance
  5. 11. – Enigmatic metal
  6. 13. Ethereal fire
  7. 16. Purifying agent
  8. 18. – Base metal
  9. 20. – Secret formula
  10. 22. – Philosopher's stone seeker
  11. 23. Life essence
  12. 24. – Mystical symbol
  13. 25. Golden powder
  14. 26. Mystical fire
  15. 27. Alchemical key
  16. 29. Hermetic symbol
Down
  1. 1. Eternal youth
  2. 3. Celestial body
  3. 4. Divine spark
  4. 7. Quintessence
  5. 8. Mercury's twin
  6. 9. – Purification process
  7. 10. Universal solvent
  8. 12. Hermetic principle
  9. 14. Mysterious potion
  10. 15. – Elixir ingredient
  11. 17. – Transformative element
  12. 19. Alchemical vessel
  13. 21. Sacred geometry
  14. 28. – Alchemical catalyst