let's compare: take a company like XRC. 62.5 M shares outstanding. Inferred estimate ( 43-101 ) of 19.6 M oz., besides silver and copper. SP of $ 5.60 ( although risen very nicely over the last few days ).
According to your musings ( $ 200/oz, no 43-101 ), XRC should have a cap. of 4 Bill., yet it is a mere 350 M.
I believe these calculations to be of interest, but at the end the market will " make " the figures and we can muse in hindsight.