@misc{indiciae5c906c3085e8,
  title = {Micas from the Pikes Peak batholith and its cogenetic granitic pegmatites, Colorado: Optical properties, composition, and correlation with pegmatite evolution},
  author = {D. E. Kile and E.E. Foord},
  year = {1998},
  url = {https://pubs.usgs.gov/publication/70020254},
  note = {Source identifier: 70020254}
}