@misc{indiciae5d7613ab9a44,
  title = {Zeolites and zeolite ore from Union Carbide Corporation's EZ No.225 placer mining claim, Graham County, Arizona},
  author = {Richard A. Sheppard},
  year = {1973},
  doi = {10.3133/ofr73261},
  url = {https://pubs.usgs.gov/publication/ofr73261},
  note = {Source identifier: ofr73261}
}