It is interesting to compare the following results:
1 Ta = 6 Nb = 13 Sb
SUM samples have about 35%Nb and 20%Ta in average.
1 SUM sample = 155% Nb = 336% Sb (REE not included)
For pure Nb company drilling 100m@1% Nb = SUM 0.65m rock chip.
For pure Sb company drilling 100m@1%Sb = SUM 0.29m rock chip.
That's to say SUM doesn't need large volume of high grade pegmatites to compete with other companies.
The very high grade Pr and Tb are also valuable. Also the mining cost will be much cheaper. GRADE is king in mining.
It is interesting to compare the following results:1 Ta = 6 Nb =...
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