Due to the multi-metal nature of the deposit, the resources are reported using Net Smelter Return (NSR) cut-off values which are as follows: Polymetallic.
Total in situ metal estimated to be 298 million ounces Ag, 4.09 million tonnes Zn, 1.74 million tonnes Pb and 130,000 tonnes Sn totalling 1.15 billion ounces silver equivalent.Due to the multi-metal.
Total in situ metal estimated to be 298 million ounces Ag, 4.09 million tonnes Zn, 1.74 million tonnes Pb and 130,000 tonnes Sn totalling 1.15 billion.
Tin mineralization at Casiterita is located 2km southwest of the Santa Barbara deposit indicating that the overall Iska Iska mineralizing system is much more extensive, as predicted from geophysical.