RE:RE:RE:QH on NRMy Guesstimate: Has not changed much from my original before the latest release.
400M by 600M by 400m times 2.7 tons per cubic m times 1.25g/ton divided by 32 is 10M oz.
That seems low, though, so I think closer is 400m by 600m by 400m times 2.7 tons per at 1.5g/ton
divided by 32 is 12.15M oz.