8 Types of Gold Ore
The remaining 5% -10% is "invisible" gold ore, symbiotic in quartz ore, silver ore, pyrite, pyrrhotite, sphalerite, gangue, arsenopyrite, gangue, and other minerals. In South Africa, Witwatersrand Basin has the world's largest placer gold deposit. Brazil's gold ores exist with diamonds. In Australia, gold is present wherever pyrites can be found.
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