@misc{indiciaedf021f05cd0d,
  title = {Spectral reflectance of carbonatites and related alkalic igneous rocks: Selected samples from four North American localities},
  author = {L. C. Rowan and M.J. Kingston and J.K. Crowley},
  year = {1986},
  doi = {10.2113/gsecongeo.81.4.857},
  url = {https://pubs.usgs.gov/publication/70015649},
  note = {Source identifier: 70015649}
}