next silverlake or northern star?, page-10

plough,
Agree that dilution could be an issue but it is only one factor. Getting all of the ore (minimal mining losses) is actually as, if not more important than dilution in this case.
Mining has not been the issue with previous attempts to extract this orebody, it has been the metallurgy. I think the concentrate solution is the biggest single difference. If they can get 90% pay terms on the gold in concentrate as suggested, it is the same as getting 90% recovery in a refractory treatment process (such as BIOX or roaster) without the capital and operating costs. It also removes the extreme complexity in separating the gold from Antimony in a hydro-metallurgical process. Neat solution I think.