@misc{indiciaecb1d73a47f8c,
  title = {Simplotite, a new quadrivalent vanadium mineral from the Colorado Plateau},
  author = {M.E. Thompson and Carl Houston Roach and Robert Meyrowitz},
  year = {1957},
  doi = {10.3133/tei641},
  url = {https://pubs.usgs.gov/publication/tei641},
  note = {Source identifier: tei641}
}