Rare Element Resources
Bear Lodge Project
Canadian NI 43-101 Technical Report
October 9
th
, 2014
10135-200-46 – Rev. 0
11-3
11.3.2 2007-2008 Sample Preparation
Drill core samples from Rare Element’s 2007 and 2008 drilling programs were
shipped to Activation Laboratories (Actlabs) in Ancaster, Ontario, Canada for sample
preparation and analysis. The samples were crushed in the laboratory to 70% -10
mesh (-2 millimeters). A 250 gram split of the sample was pulverized into a pulp of
85% -200 mesh (-75 microns), and the pulp was analyzed.
11.3.3 2009-2013 Sample Preparation
Drill core samples from all holes from Rare Element’s 2009 through 2013 drilling
programs were shipped by truck to Minerals Exploration & Environmental
Geochemistry (MEG) in Reno, Nevada for sample preparation. The samples were
crushed in the laboratory using a roll crusher followed by jaw crushing to 85% -10
mesh (-2 millimeters), and a 250-gram split of the sample was pulverized into a pulp
of 85% -200 mesh (-75 microns). Standards, blanks, and crush duplicates were
inserted by MEG into the sample stream, numbered in sequence, and blinded to the
analytical laboratory. Starting in 2010, analytical duplicates were also inserted into the
sample stream to monitor analytical reproducibility as well as preparation
reproducibility. Additional pulverized splits were archived by MEG against the chance
that a pulp sample might be lost during shipment to the assay lab. Quality control
samples were included with the sample stream at a rate of 10%. The 2009, 2012 and
2013 drill sample assay pulps, standards, duplicates and blanks were sent to
Activation Laboratories in Ancaster, Ontario, Canada for quantitative assay. The
2010-2011 drill sample assay pulps, standards, blanks and duplicates were sent to
ALS in Vancouver, British Columbia, Canada for quantitative assay.
11.3.4 2004-2005 Assaying
Drill core samples from Rare Element’s 2004 and 2005 drilling programs were
analyzed for REE, Au, Fe, Mn, U, Th, and Y. None of these assays are currently
being used for resource estimation. The 2004 and 2005 drill hole data were replaced
with more reliable information from the 2009 through 2013 drill programs.
11.3.5 2007-2008 Assaying
Drill core samples from Rare Element’s 2007 and 2008 drilling programs were
analyzed for REE, Au, V, Cr, Co, Ni, Cu, Zn, Ga, Ge, As, Rb, Sr, Zr, Nb, Mo, Ag, In,
Sn, Sb, Cs, Ba, Hf, Ta, W, Tl, Pb, Bi, Th, and U. The REE include La, Ce, Pr, Nd, Sm,
Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y. The REE and multi-element geochemical
