"Quartz vein type deposit running at 50grams/ton sounds great...

"Quartz vein type deposit running at 50grams/ton sounds great but is it better than 6 grams/ton of a 6 meter wide continuously graded ore"

I agree with you often better lower grade and a wider intercept as so many big miners have discovered after trying to use jumbos where aire leggers were working previously.
So often it comes down to technique to reduce dilution
1.5 metre drifts are possible with airlegs not even with j small single boomer jumbos..
The nugget effect also needs to be taken into account and unfortunately for crc they dont have a nugget effect (unlke MCO and SLR and others) for any grade factoring to occur.

Interesting to see they expect 99% recovery from flotation has that ever occurred in a gold mine plant to date?

This has a bunch of question marks but its interesting that there are workings in the area and it was a top location in NSW once
I guess the feasability will be interesting to see although often shareholders never get a look in to it.