The 30 metre beach series (the oldest beaches further inland) had 59 points on average and the average for all exploration to date is more than 20.
I know from past years that the Majestic alluvial river operation only required about 1 carat per hundred tonnes to make their operation economic. That was with 1 carat diamonds on average if memory serves me correctly.
RTM
reefton mining nl
The 30 metre beach series (the oldest beaches further inland)...
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