@misc{indiciae0f86aeae0ea4,
  title = {Environmental considerations related to mining of nonfuel minerals},
  author = {Robert R. Seal and Nadine M. Piatak and Bryn E. Kimball and Jane M. Hammarstrom},
  year = {2017},
  doi = {10.3133/pp1802b},
  url = {https://pubs.usgs.gov/publication/pp1802B},
  note = {Source identifier: pp1802B}
}