@misc{indiciaea95f0d89ef77, title = {Alpersite (Mg,Cu)SO4ยท7H2O, a new mineral of the melanterite group, and cuprian pentahydrite: Their occurrence within mine waste}, author = {Ronald C. Peterson and Jane M. Hammarstrom and Robert R. Seal}, year = {2006}, doi = {10.2138/am.2006.1911}, url = {https://pubs.usgs.gov/publication/70030737}, note = {Source identifier: 70030737} }