@misc{indiciae0202d7b58cce, title = {Mineral Commodity Summaries 2005}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {2005}, doi = {10.3133/mineral2005}, url = {https://pubs.usgs.gov/publication/mineral2005}, note = {Source identifier: mineral2005} }