@misc{indiciae2b1c77188042,
  title = {CRIB; the mineral resources data bank of the U.S. Geological Survey},
  author = {James Alfred Calkins and Olaf Kays and Eleanor K. Keefer},
  year = {1973},
  doi = {10.3133/cir681},
  url = {https://pubs.usgs.gov/publication/cir681},
  note = {Source identifier: cir681}
}