race to the finish line, page-26

Stoops,

are the pennies dropping - are you beginning to understand

if you produce a concentrate at 35% then what you will end up with to seperate is ...

Rare Earth Grade x 35% = Available

so for the two light rare eaths

cerium 38.63 x 35% = 13.52%
lanthanum 18.07 x 35% = 6.32%

now for the more expensive heavy rare earths which CUX has even less of - you guessed it - they end up with even less

but the propostions stay the same - you will always have around 56% in the less valuable, most common cerium and lanthanum

I know maths is not your stong point - but even blind freddy should be able to understand this