@misc{indiciaedc2572d0fa50,
  title = {The action of ammonium chloride upon silicates},
  author = {Frank Wigglesworth Clarke and George Steiger},
  year = {1902},
  doi = {10.3133/b207},
  url = {https://pubs.usgs.gov/publication/b207},
  note = {Source identifier: b207}
}