SULFATE MINERALS AT THE FORMER SHERRITTāGORDON ZnāCu MINE, SHERRIDON, MANITOBA, CANADA MICHAEL C. MONCURĀ§...copper, silver, and gold between 1930 and 1951. Since mine closure, two high-sulfide tailings impoundments...melanterite, rozenite, halotrichite, chalcanthite, alpersite, copiapite, hexahydrite, jurbanite, pickeringite...freshet. Keywords: sulļ¬de oxidation, alpersite, jarosite, mine tailings, modeling, efļ¬orescent minerals...melanterite, jurbanite, metals, SherrittāGordon ZnāCu Mine, Sherridon, Manitoba, Canada. INTRODUCTION Pyrite |