@misc{indiciae6157987f28a4,
  title = {Equilibrium coexistence of three amphiboles},
  author = {P. Robinson and H.W. Jaffe and C. Klein and M. Ross},
  year = {1969},
  doi = {10.1007/bf00387957},
  url = {https://pubs.usgs.gov/publication/70001743},
  note = {Source identifier: 70001743}
}