This is why our mate Nic is smiling. from the link - The point...

This is why our mate Nic is smiling.
from the link -
The point is that large, disseminated, copper-gold systems can be profitable at very low grades. The investor therefore needs to know the style of mineralisation and the potential size of the deposit in addition to grades. Conversely, narrow, discontinuous, but high grade deposits may require a very high cut-off grade to be economically mined.

Alkane managing director Nic Earner said: “The Boda prospect just keeps getting bigger and bigger.“We have extended the mineralisation to the north and to the south, we have either an extension or a whole new system emerging.“We believe Boda is shaping up to be a large, tier-one gold-copper porphyry project