developments in the processing of refractory & complex gold ores
developments in the processing of refractory & complex gold ores
developments in the processing of refractory & complex gold ores
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
ORE CATEGORIES (CONT.)<br />
• Ores conta<strong>in</strong><strong>in</strong>g cyanide and/or oxygen consumers <strong>in</strong>clud<strong>in</strong>g:<br />
- oxide/hydroxide copper m<strong>in</strong>erals, native copper, secondary<br />
copper sulphide m<strong>in</strong>erals<br />
- reactive iron sulphide m<strong>in</strong>erals, pyrrhotite, marcasite<br />
- reactive antimony and arsenic sulphide m<strong>in</strong>erals,<br />
stibnite Sb 2 S 3 , orpiment As 2 S 3 , realgar As 4 S 4<br />
Note:<br />
More than one category can apply to a particular ore deposit;<br />
e.g. double <strong>refractory</strong> <strong>ores</strong> <strong>in</strong> Nevada with <strong>gold</strong> locked <strong>in</strong> iron<br />
sulphides plus preg-robb<strong>in</strong>g carbonaceous material.<br />
4
Change language