this is an outstanding forum with unbelievable DD and TA.
one said below, some elements per lb can bring $1,000.
tonage without gold and silver is = to almost 3900 fer one tonage sorting.
heck i use to shovel coal, sand, gravel, mix cement sand and stone for foundations and sidewalks.
so imagine how many tons can be done in an hour.
another thing elements have weight structures...
let's do it this way.
rare earth elements..
conservatively rounding off numbers.
$3,897='s pps / $0.3897 rare earth elements.
gold='s pps / 1300 plus / $1.30
silver='s pps / $29 plus / $0.29
ZIRCONS --- DIAMONDS / depends how rare...pps ='s $0.12
$0.3897
$1.30
$0.29
$0.12
$2.10 pps share