@misc{indiciaebe7949974f60,
  title = {Garnets in Montana diatremes; a key to prospecting for kimberlites},
  author = {B. C. Hearn and E. S. McGee},
  year = {1983},
  doi = {10.3133/b1604},
  url = {https://pubs.usgs.gov/publication/b1604},
  note = {Source identifier: b1604}
}