@misc{indiciae925d7a85096b,
  title = {Sulphate minerals of the Comstock Lode, Nevada},
  author = {C. Milton and W. D. Johnston},
  year = {1938},
  doi = {10.2113/gsecongeo.33.7.749},
  url = {https://pubs.usgs.gov/publication/70207439},
  note = {Source identifier: 70207439}
}