@misc{indiciaea0989683d654,
  title = {Cummingtonite: A reversible, nonquenchable transition from P21/m to C2/m symmetry},
  author = {C.T. Prewitt and J. J. Papike and M. Ross},
  year = {1970},
  doi = {10.1016/0012-821x(70)90150-0},
  url = {https://pubs.usgs.gov/publication/70010269},
  note = {Source identifier: 70010269}
}