@misc{indiciae657f4cf0ae67,
  title = {Trace element analyses of tourmalines from Appalachian-Caledonian massive sulfide deposits},
  author = {N. M. Conklin and J. F. Slack},
  year = {1983},
  doi = {10.3133/ofr83890},
  url = {https://pubs.usgs.gov/publication/ofr83890},
  note = {Source identifier: ofr83890}
}