Can sulfide ore be cyanided? Is it possible? What are the admission conditions? At what level of sulfur does it not recommend cyanidation?

Sulfide ore is a primary ore and can also undergo cyanidation. After fine grinding, it can be vat leached or processed with carbon slurry. If the fineness is not enough, for example, if it is not finely crushed, the leaching rate in heap leaching will be very low.