Mainly because the majority of the ores that incorporate silver also comprise the vital metals guide, copper, or zinc or a mix of the 3, the silver-bearing fraction of such ores is routinely recovered as a by-solution of copper and guide output. Practically all sulfides of lead, copper, and zinc https://wissenfakt.de/maximieren-sie-ihre-gewinne-der-ultimative-leitfaden-zum-verkauf-von-silber/