@misc{indiciaedb475aaa1bba,
  title = {Understanding contaminants associated with mineral deposits},
  author = {Philip L. Verplanck},
  year = {2008},
  doi = {10.3133/cir1328},
  url = {https://pubs.usgs.gov/publication/cir1328},
  note = {Source identifier: cir1328}
}