@misc{indiciae8810dfac8d61,
  title = {Kyanite, sillimanite, and andalusite deposits of the southeastern States},
  author = {G.H. Espenshade and D.B. Potter},
  year = {1960},
  doi = {10.3133/pp336},
  url = {https://pubs.usgs.gov/publication/pp336},
  note = {Source identifier: pp336}
}