Cyanide Treatment of Auriferous Concentrate from Nova Scotian Ores

IT IS generally stated that the gold ores of Nova Scotia are free-milling, and for the most part this is true. However, there is a certain proportion of the gold finely disseminated throughout the sulphides, notably arsenopyrite, and this gold is definitely not recoverable as 'free-milling' gold by amalgamation. The proportion of free-milling gold to total gold seems to vary widely in different localities in the Province and is lowest in deposits of the fissure-vein type.
Keywords: arsenopyrite, Icon Cyanide .. ., Nova Scotia, sal ammoniac, zinc, Concentrate, Concentrates, cyanide, Gold, Mill, Mills, Plants, tailings, Treatment
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