Many geochemists, like my colleague Thorsten Kleine, suggested (not unreasonably) that the age of these rocks is the same as the age of the Moon. But people like Alessandro Morbidelli, who study ...
Robust base case NPV5% of $735 million (after-tax) and IRR of 41% at a $1,900 per ounce gold price assumption. Using a $2,500 gold price assumption, NPV5% is $1.2 billion (after-tax) and IRR is 58%.