@misc{indiciae245057b3002f,
  title = {Talc and soapstone in the United States},
  author = {A.H. Chidester and Henry Wilson Worthington},
  year = {1961},
  doi = {10.3133/ofr6132},
  url = {https://pubs.usgs.gov/publication/ofr6132},
  note = {Source identifier: ofr6132}
}