@misc{indiciae4b37440713fa,
  title = {Mineralogy and Morphology of Amphiboles Observed in Soils and Rocks in El Dorado Hills, California},
  author = {G.P. Meeker and H.A. Lowers and G.A. Swayze and B. S. Van Gosen and S. J. Sutley and I. K. Brownfield},
  year = {2006},
  doi = {10.3133/ofr20061362},
  url = {https://pubs.usgs.gov/publication/ofr20061362},
  note = {Source identifier: ofr20061362}
}