Dr. Donald Ranta reports
RARE ELEMENT REPORTS COLLECTION OF BULK SAMPLE FOR PROPOSED PILOT PLANT TEST
Rare Element Resources Ltd. has completed a bulk sample
collection program at the company's 100-per-cent-owned Bear Lodge rare earth
element (REE) and gold property, located in northeastern Wyoming. The
objective of the program was the acquisition of about eight tons or more of
oxidized, REE mineralized FMR vein material that will be used to feed a
proposed pilot plant designed to test the commercial viability of the
mineral process flowsheet developed for the REEs by Mountain States
Research and Development International, the company's
metallurgical testing consultants. A second purpose for the test is to
produce a bulk mixed rare earth concentrate that can be used for
marketing if the company decides to sell concentrates initially,
possibly as a first step toward eventual individual rare earth oxide
separation and sale. Several laboratories with pilot plant capabilities
are under consideration for the testing. The pilot plant test will be
part of a preliminary feasibility study planned for completion in late
2011.
The term FMR refers to the major constituents of the highly oxidized and
leached, former carbonatite dikes that occur in the depth range from
the surface to 300 to 500 feet beneath the surface -- FeOx (iron oxides), MnOx (manganese oxides) and REE minerals. The original carbonatite dikes contained high abundances
of both REE and sulphides. Oxidation of the sulphides resulted in the
leaching of nearly all matrix carbonates and formed residual FMR, which
generally contains only bastnasite-group rare earth minerals as the
residual carbonates. FMR mineralization is a loose and friable material
with a clay-like consistency that disaggregates easily.
The bulk testing program consisted of a series of large-diameter PQ
(diameter 85 millimetres) and HQ (diameter 63.5 mm) core holes that penetrated the
oxide zone in the Bull Hill Southwest REE deposit. The holes were
drilled from closely spaced sites in each of two areas (9-F and 9-A) where the FMR vein material occurs very close to the surface.
Drilling was designed to collect samples that would be representative
of material sent to the mill during the first five years of potential
production. The deepest holes were drilled to a depth of approximately
190 feet (58 metres). The areas sampled by these methods were located in the
northwestern and southeastern parts of the deposit. Grades are likely
to range between 2 per cent and 15 per cent rare earth oxide, based on previous exploration holes
from the same sites. Multiple holes were drilled from each site in fans
at a common azimuth and different inclination angles designed to
capture as much FMR as possible. A total of 40 holes were drilled, with
an aggregate footage of 2,117 feet (645 metres) of REE mineralized FMR
material. Thirty of the drill holes are PQ-size holes for a total
footage of 1,753 feet (534 metres) of FMR material, and 10 of the holes are
HQ-size, with a total footage of 364 feet (111 metres) of FMR material. The
aggregate weight of REE mineralized material collected from the
drilling program is about 14,000 pounds (6,364 kilograms).
The drill core will be augmented by bulk FMR sample material collected
from a shallow trench excavated in a drill site in the northwestern
part of the Bull Hill Southwest deposit, near site 9-F. There are
approximately 3,500 pounds (1,591 kilograms) of FMR material from the trench
collected in several 55 gallon drums. The company has stockpiled a
total of approximately 8.8 tons (eight tonnes) of FMR material at its
core storage facility in Sundance, Wyo. This material will be
retained there until the testing laboratory is selected and the pilot
plant is built and ready for operation. The program has acquired
sufficient FMR feed material required for the pilot plant study.
Donald E. Ranta, PhD, PGeo, serves the board of directors of the company
as an internal, technically qualified person. Technical information in
this news release has been reviewed by Dr. Ranta and has been prepared
in accordance with Canadian regulatory requirements that are set out in
National Instrument 43-101.
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