@misc{indiciae871fa97d3e8d,
  title = {Experimental determination of the reaction chalcopyrite + sulfur = pyrite + bornite from 350 to 500° C},
  author = {P. B. Barton and P. Toulmin},
  year = {1964},
  doi = {10.2113/gsecongeo.59.5.747},
  url = {https://pubs.usgs.gov/publication/70221126},
  note = {Source identifier: 70221126}
}