@misc{indiciaeef21b300f693,
  title = {Mineral resource of the month: cultured quartz crystal},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {2008},
  url = {https://pubs.usgs.gov/publication/70045922},
  note = {Source identifier: 70045922}
}