@misc{indiciaeaf48d43e2c91,
  title = {A process for reducing rocks and concentrating heavy minerals},
  author = {Thomas R. Strong and Rhonda L. Driscoll},
  year = {2016},
  doi = {10.3133/ofr20161022},
  url = {https://pubs.usgs.gov/publication/ofr20161022},
  note = {Source identifier: ofr20161022}
}