Rare Element Resources
Bear Lodge Project
Canadian NI 43-101 Technical Report
October 9
th
, 2014
10135-200-46 – Rev. 0
11-17
(Jaacks, 2014)
11.6.8 2009-2013 Crush (Preparation) Duplicates
Five hundred and five sets of crush duplicates were prepared from selected drill
intervals to evaluate preparation reproducibility at Minerals Exploration Geochemistry
Laboratory. The results are displayed in Figure 11.2 and tabulated in Table 11.4 for
the TREO. The duplicates show acceptable preparation precision for TREO.
Correlation between the analytical duplicates is high. Bias is low, and more than 95%
of the crush duplicate analyses are within ± 20% of the original analyses. The crush
duplicates display acceptable preparation precision for resource estimation.
11.6.9 2009-2013 Pulp (Analytical) Duplicates
Four hundred and seventy-six sets of pulp duplicates were prepared from selected
drill intervals to evaluate analytical reproducibility at Actlabs and ALS. The duplicates
show acceptable analytical precision for TREO. Correlation between the analytical
duplicates is high. More than 97% of the pulp duplicate analyses are within ± 10% of
the original analyses. The pulp duplicates display acceptable analytical precision for
resource estimation.
