From the NR:
Eighty seven percent of the average value of TREE is made up of lanthanum, cerium and neodymium with neodymium grades averaging 0.42% of the measured and indicated resource.
The resource is reasonably big, but isn't that a poor distribution of REE's? Others have 70 to 80 % of the cheap elements La and Ce, and 12 to 20 % Nd.
See the overview of REE mines and projects at Arafura:
|
Rare Earth Contents by Project
|
|
Nolans
%
|
Mountain Pass
%
|
Baiyunebo
%
|
Mt Weld
%
|
| Lanthanum |
20.0
|
33.20
|
25.00
|
25.60
|
| Cerium |
48.2
|
49.10
|
50.07
|
45.74
|
| Praseodymium |
5.9
|
4.30
|
5.10
|
5.42
|
| Neodymium |
21.5
|
12.00
|
16.70
|
18.62
|
| Samarium |
2.4
|
0.80
|
1.20
|
2.44
|
| Europium |
0.41
|
0.12
|
0.20
|
0.55
|
| Gadolinium |
1.0
|
0.17
|
0.70
|
0.97
|
| Terbium |
0.08
|
-
|
0.01
|
0.09
|
| Dysprosium |
0.34
|
-
|
0.01
|
0.16
|
| Other |
0.17
|
0.31
|
1.01
|
0.41
|
| Total |
100.00
|
100.00
|
100.00
|
100.00
|
http://www.arafuraresources.com.au/nol_reo_dist.html
(the titles may be invisible, just select the whole table)
