Mr. Jaye Pickarts reports
RARE ELEMENT RESOURCES COMPLETES TRENCHING PROGRAM WITH ASSAYS INDICATING BULK SAMPLE AVERAGE GRADE OF 10.1% TOTAL RARE EARTH OXIDE
Rare Element Resources Ltd. has completed a trenching program that
confirmed geology, structure and grade of the near-surface high-grade
zone at the Bull Hill deposit. Additional studies are under way to
confirm detailed mineralogy. The trenched area is the anticipated site
of initial mining as contemplated in the recently released preliminary
feasibility study. Bulk samples excavated during the trenching
returned an average assay of 10.1 per cent total rare earth oxide over a
length of approximately 225 feet (69 metres). Approximately 1,000 tons
(907 tonnes) of mineralized material were excavated from the trench to
feed a planned demonstration-scale plant using the process flow sheet
that incorporates the company's proprietary recovery technology,
including the recently announced process for the production of partially
separated rare earth products.
"The results of the trenching and bulk-sample program were positive on
multiple levels," said Jaye T. Pickarts, chief operating officer. "We
were able to confirm the continuity, orientation and grade of the
high-grade zone in that portion of the orebody we intend to mine first.
This work allowed us to collect valuable data that will be incorporated
into detailed engineering. Most importantly, we excavated a large
mineralized sample that we plan to use in a demonstration plant to
confirm on a larger scale our process flow sheet, including the recently
announced separation technology. It will allow us to thoroughly evaluate
and confirm the entire process, from run of mine to the creation of a
significant quantity of final separated products on a continuous-run
basis. This work will generate important information that will
contribute to both the feasibility study and detailed engineering,
including testing materials of construction, confirming equipment
selection and verifying material-handling parameters. Having this
information prior to construction should derisk the project
significantly and greatly reduce or eliminate the numerous start-up
issues experienced by other companies in the rare earth sector."
The trench exposed the Bull Hill main dike for a total distance of
approximately 300 feet (91.4 metres) along a northwesterly strike with
widths that varied from eight to 20 feet (2.5 to 6.1 metres). Nine 120-ton
bulk samples were collected on 25-foot spacing (7.6 metres), with two-ton
(0.9-tonne) representative subsamples collected from each block for
preliminary metallurgical testing. Nine 30-pound (13.6-kilogram)
representative assay samples were collected from each subsample to
provide an estimate of grade and continuity. These assays range from
3.65 per cent to 14.65 per cent TREO and average 10.1 per cent TREO. Four cross-trenches were
excavated and sampled (six 12-ton bulk samples, each with a 0.5-ton
subsample and an assay sample) to provide material to test the
processing character of mid- to low-grade stockwork material, and help
ascertain the trend and character of the dike and adjacent stockwork
zones.
The excavation confirmed that the main highly oxidized carbonatite dike
at the Bull Hill deposit is flanked by parallel dikes, splays and
stockwork mineralization, collectively forming a mineralized zone that
extends at least 300 feet (91.4 metres) along strike and attains widths
of up to 40 feet (12.2 metres). In the subsurface, this zone expands to
more than 300 feet (91.4 metres) in width based on detailed drilling
and assay data. Geological information collected from the trench proves
dike orientation and continuity, mineralogy, and grade along its
northwest strike. Structural mapping data collected validate trends
utilized in resource modelling and will be incorporated in pit wall
stability design.
The 1,000-ton bulk sample collected from the trench is currently being
stockpiled on company-owned property at the Bear Lodge project. The area
of excavation has been reclaimed in accordance with U.S. Forest Service
and Wyoming Department of Environmental Quality standards.
Planned demonstration plant
Pending financing and the successful completion of additional
bench-scale testing of the company's recently announced separation
technology, the company plans to construct in 2015 and then operate a
larger-scale (one to three tons per day) continuous-run demonstration plant to
confirm its process flow sheet from physical upgrade to separated rare
earth oxide products. It anticipates generating approximately 70 tons
(63 tonnes) of rare earth products from processing the trench material
based on expected recovery rates. The demonstration plant will
contribute important operating data for consideration in the planned
feasibility study and inclusion in detailed engineering, with the goal
of avoiding some of the start-up issues that have plagued others in the
rare earth sector. Additionally, the resultant products will be provided
to a wider range of potential off-take partners for evaluation and
testing for specific applications.
John T. Ray, MS, Rare Element's internal qualified person under
Canadian NI 43-101, supervised the preparation of the scientific and
technical information concerning the company's mineral project contained
in this new release.
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