The Process Mineralogy Of Gold The Classification Of Ore
the principal gold minerals that affect the processing of gold ores are native gold, electrum, au-ag tellurides, aurostibite, maldonite, and auricupride. In addition, submicroscopic gold, principally in arsenopyrite and pyrite, is also important. the main causes of refractory gold ores are submicroscopic gold, the au-ag tellurides, and very fine-grained gold locked smelting: smelting is the process of reducing the roasted metallic oxide from the metal in its molten condition. In this process, impurities are removed as slag by the addition of flux. types of separation or concentration of an ore. there are four major types of separation of ores based on the nature of the ore.