Yes that is Fosterville - said to be lowest all in sustaining...

Yes that is Fosterville - said to be lowest all in sustaining cost major gold mine - a moneybag.

Looking at Vertex from the point of view of the grade which will come out of Reward and the economics of the exceptional plant it could challenge on costs.

@Wack 's post dealt largely with the prospect and method of getting annual production (from high grade) at numbers similar to Forsterville (275,000 oz pa.)
He dealt with complex geology and did it exceptionally well. Mainly from the point of view of the geos who have to find needles (albiet quite large ones) in a folded rocky haystack.
Once again a brilliant post mate - full of new info (for me anyway lol) Thanks.

@hersuit You said you understood little of the detail - and as I have done many times before to others, I suggest you should do some study - in many ways the detail is about as difficult as following one of Nigella's recipes.

Here is a start. Ore Deposits 101 Parts 1 to 4 - follow on to other Parts as you need.
https://www.youtube.com/playlist?list=PLcVjw7FDXXrYiD6CUhbs_OEbn-GpvKylf

Or you could skip to Part 11 dealing with the economics of mining those deposits.


While the 'traps' where the gold bearing fluids accumulate are important, so too is the source of those fluids and the physical and chemical properties of the 'traps' which cause the gold to come out of solution. All covered in detail.

Talking again about Forsterville and the other hugely rich Victorian gold mines - there is a talk by a Vic Govt geo about how the whole of the Earths crust in Victoria was dragged over the lower crust in an easterly direction, the current surface layers leading. This resulted in the various fluid conduits (Faults, etc) coming in turn over deep sources of mineralised fluids. Amongst other things. that explains why many of those deposits display several epochs of mineralisation. Of particular interest when antimony appears in a later? phase.

I am very interested in antimony (invested on a small scale) because it is IMO genuinely scarce - and an esential mineral for manufacture of solar panels.

Hillgrove and Forsterville (Sunday Creek gold/antimony too) are a long way apart. I think there is a connection - to be discovered some day. The specific mineralisation will be important.

GL all tomorrow - Q reports soon.