Metallurgy

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Across
  1. 4. A great accomplishment made by the Gupta's
  2. 6. The main metals used by metal workers
  3. 7. what is the 25ft pillar made of.
  4. 8. Who owned the mines
Down
  1. 1. How much did the iron pillar weigh
  2. 2. What was often on coins
  3. 3. The location of the Iron pillar
  4. 5. What was the metal used to make