Metallurgy

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Across
  1. 3. common name of sodium aluminium fluoride
  2. 7. common name of the ore hydrated aluminium oxide
  3. 8. other word for matrix
  4. 9. naturally occurring mineral from which metal can be extracted profitably
  5. 11. compounds of various metals with earthly impurities
  6. 12. an example for a non magnetic ore
Down
  1. 1. name of the concentration process based on preferential wetting of ore with oil
  2. 2. another name for the concentration of ore
  3. 4. common name of the ore zinc carbonate
  4. 5. common name of the ore tri iron tetroxide
  5. 6. removal of impurities based on difference in density
  6. 10. rocky impurities associated with ore