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Mining for Greener Technologies

Resource Estimate

The current estimate of reserves and resources are set out in the chart below.

 

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However, as the material can be magnetically separated very cheaply with the costs offset to some extent by the sales of the waste products, the effective true grade is:

9-10%             ZrO2

2.5-2.7%         REO

1%                  Nb2O5

0.15%             Ta2O5, HFO2

Recent testing on a limited scale suggest that eudialyte also contains tungsten at about the same concentration as tantalum - no efforts have been undertaken to see if this can be economically separated.