TY - RPRT TI - Alpersite (Mg,Cu)SO4ยท7H2O, a new mineral of the melanterite group, and cuprian pentahydrite: Their occurrence within mine waste AU - Ronald C. Peterson AU - Jane M. Hammarstrom AU - Robert R. Seal PY - 2006 DO - 10.2138/am.2006.1911 UR - https://pubs.usgs.gov/publication/70030737 ID - 70030737 ER -