@misc{indiciae064d8b735932,
  title = {Comparison of methods to determine degree of pyritization},
  author = {J. Leventhal and C. Taylor},
  year = {1990},
  doi = {10.1016/0016-7037(90)90249-k},
  url = {https://pubs.usgs.gov/publication/70016074},
  note = {Source identifier: 70016074}
}