Ngualla: %% Cerium 48.3%Lanthanum 27.5Neodymium...

Ngualla: %%
Cerium 48.3%
Lanthanum 27.5
Neodymium 16.2***
..................
Europium 0.31***
Gadolinium 0.65
Samarium 1.56
Praseodymium 4.66***
.................
No Dysprosium / terbium....?

"A lot of fuss is made over light versus heavy rare earths. Some light rare earths, like cerium and lanthanum, are very common, and therefore not as valuable.

Certain heavy rare earths like terbium and dysprosium are rare indeed and therefore much more valuable.

But there are heavy rare earths that don't have any use and therefore are not valuable. At the same time, there are lights, like neodymium and praseodymium, that are in high demand to make magnets, and therefore are valuable.

Investors should pick companies that have high values of dysprosium, terbium, europium, neodymium and praseodymium. But analysts warn that grade and proven metallurgy trump distribution."
...................................................
"What to look for in a rare earths project"
http://www.mineweb.com/mineweb/view/mineweb/en/page56?oid=120607&sn=Detail&pid=102055