@misc{indiciae5f11148d93e4,
  title = {On hypersthene andesite and on triclinic pyroxene in augitic rocks},
  author = {Whitman Cross and Samuel Franklin Emmons},
  year = {1883},
  doi = {10.3133/b1},
  url = {https://pubs.usgs.gov/publication/b1},
  note = {Source identifier: b1}
}