Pilares Copper Mine Near Nacozari Viejo, Mexico | The ...
Nacozari Viejo, Mexico. The Pilares Copper Mine is near Nacozari Viejo, Mexico. The Pilares Copper Mine is a underground mining operation. The ore mined is composed of tetrahedrite, chalcocite and galena with waste material consisting primarily of quartz, sericite and chlorite. The ore is associated with breccia 600 meters (1,968 feet) long and ...