@misc{indiciaec4a544e0fb55,
  title = {Hornblendes formed during progressive metamorphism of amphibolites, northwest Adirondack Mountains, New York},
  author = {A.E.J. Engel and C.G. Engel},
  year = {1962},
  doi = {10.1130/0016-7606(1962)73[1499:hfdpmo]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70220792},
  note = {Source identifier: 70220792}
}