@misc{indiciaef27fd8b68742,
  title = {Fe and Mg in plagioclase},
  author = {Longhi, J. and Walker, D. and Hays, J. F.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770051876},
  note = {Source identifier: 19770051876}
}