@misc{indiciae4cedea2db726,
  title = {Compositional variation in minerals of the chevkinite group},
  author = {R. Macdonald and H. E. Belkin},
  year = {2018},
  doi = {10.1180/0026461026660078},
  url = {https://pubs.usgs.gov/publication/70024109},
  note = {Source identifier: 70024109}
}