@misc{indiciaed8a4822c482e,
  title = {Hydration of natural glass and formation of perlite},
  author = {I. Friedman and R.L. Smith and W.D. Long},
  year = {1966},
  doi = {10.1130/0016-7606(1966)77[323:hongaf]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70206947},
  note = {Source identifier: 70206947}
}