'The average grade of copper ores in the 21st century is below 0.6 percent copper' (Source: investingnews.com)
From HAV's 29/3/17 ASX release:
Kalkaroo has a Copper-equivalent of 0.79% excluding Cobalt and the Gold cap of 515k oz
p.6 shows the depth of overburden < 100m to first ore.
From HAV's 12/3/15 ASX release:
Re: the metallurgy, per Dr Giles it is straightforward, not 'complex'.
"...metallurgical test work indicates that processing of the Kalkaroo ore types will be quite straightforward, with some ore like the native copper, being very simple gravity recovery. Also, the thickness and uniformity of the Kalkaroo orebody means that the effect of dilution of the ore by barren waste material will be minimal..."
DYOR
'The average grade of copper ores in the 21st century is below...
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