@misc{indiciaecc594a02db29,
  title = {The carbonatite stock at Iron Hill, Gunnison County, Colorado– Chemical and mineralogical data},
  author = {Theodore J. Armbrustmacher and Isabelle K. Brownfield},
  year = {1979},
  doi = {10.3133/ofr79537},
  url = {https://pubs.usgs.gov/publication/ofr79537},
  note = {Source identifier: ofr79537}
}