complex ore
complex ore
An ore containing two or more metals, as lead-zinc ore. Many complex ores are difficult or costly to treat, e.g., gold ore with arsenic or antimony minerals, or ore composed almost entirely of several sulfide minerals.
An ore containing several metals.
Ores named for two or more valuable metals such as lead-zinc ores, gold-silver ores, etc.
This term has no precise meaning. It generally signifies an ore that is difficult or costly to treat because of the presence of unusual minerals, e.g., a gold ore with aresenic and antimony minerals, or an ore containing two or more metals, or ore composed almost wholly of several sulfide minerals.