@misc{indiciae0aa4b5e72c8b,
  title = {Secondary sulfate minerals associated with acid drainage in the eastern US: Recycling of metals and acidity in surficial environments},
  author = {J. M. Hammarstrom and R.R. Seal and A. L. Meier and J.M. Kornfeld},
  year = {2005},
  doi = {10.1016/j.chemgeo.2004.06.053},
  url = {https://pubs.usgs.gov/publication/70029413},
  note = {Source identifier: 70029413}
}