@misc{indiciae00157eefeecf,
  title = {Analysis of rocks and minerals from the laboratory of the United States Geological Survey, 1880 to 1908},
  author = {Frank Wigglesworth Clarke},
  year = {1910},
  doi = {10.3133/b419},
  url = {https://pubs.usgs.gov/publication/b419},
  note = {Source identifier: b419}
}