#Metals / #GreenEnergy #Stocks News: Defense
Metals (TSX-V: $DEFN.V) (OTCQB: $DFMTF) X-Ray Transmission Amenability Study
Demonstrates Potential For Sensor Based Upgrading Of Wicheeda Rare Earth
Element Feed; @DefenseMetals
Vancouver, British Columbia - March 9, 2021 (Investorideas.com Newswire, MiningSectorStocks.com and RenewableEnergyStocks.com) -Mining / Metals / Green Energy Stock News - Defense Metals Corp. ("Defense Metals") (TSX-V:DEFN / OTCQB:DFMTF/ 35D: FSE)) is pleased to announce that it has received the results of an X-Ray Transmission amenability study completed on samples of Wicheeda Rare Earth Element (REE) mineralized drill core by the Saskatchewan Research Council (SRC), Saskatoon, SK.
Read this news featuring DEFN in full at https://www.investorideas.com/news/2021/mining/03091DEFN-X-Ray-Transmission-Amenability-Study.asp
The road accessible Wicheeda REE Property is
located close to infrastructure approximately 80 kilometres northeast of Prince
George, British Columbia (BC). The Wicheeda project has indicated
mineral resources of 4,890,000 tonnes averaging 3.02% LREO (Light Rare Earth
Elements) and inferred mineral resources of 12,100,000 tonnes averaging 2.90%
LREO[1].
Highlights of the XRT amenability study completed
by SRC on samples of high-grade REE mineralized Wicheeda diamond drill core are
as follows:
·
X-ray transmission
measurements and QEMSCAN® confirmed that XRT
technology can identify Wicheeda REE minerals in drill core samples (Figure
1).
·
Crushing to -15 mm size particles and using a 5% REE mineral lower cut-off in the sorting
algorithm, demonstrated the potential of low-cost front end XRT sorting
to upgrade 2.3x from approximately 11% REE mineral content to 25%
REEmineral content.
·
Upgrading of Wicheeda REE
mineralization via XRT sorting has the
potential to significantly reduce feed volume forwarded to downstream the
hydrometallurgical process.
Craig Taylor, CEO of Defense Metals, stated: "Defense Metals is excited to establish the amenability of
Wicheeda REE mineralization to the application of low-cost front end upgrading
via sensor-based sorting technologies. We know from our very successful
flotation pilot plant and bench-scale hydrometallurgical test-work that early
volume reduction and upgrading has significant downstream benefits. The quality
of concentrate we can deliver to flotation process has direct benefits in terms
of process recovery, and reduced costs related to reagent reduction. Based on
the success of this amenability test work SRC have recommended proceeding to a
series of confirmatory XRT sorting optimization tests."
XRT sorting is a technology that exploits the
atomic density (atoms/cm3) differences of minerals. The atomic
densityof a mineral is closely related to the minerals' density (gram/cm3)
and is therefore a viable technology for upgrading the mineralized feed prior
to processing. Previous test work indicated that gravity separation prior to
flotation was beneficialin concentrating Wicheeda REE minerals due to the large
density differences between the REE and gangue minerals.
To evaluate amenability to XRT sorting, a
combination of high-resolution XRT and QEMSCAN® (Quantitative Evaluation of
Materials by Scanning Electron Microscopy) measurements were carried out at the
SRC. Thesemeasurements identify if the atomic density differences between the
REE and gangue minerals can be exploited for XRT sorting. The greyscale levels
associated with the various minerals are identified using QEMSCAN®
measurements.
Using the X-ray greyscale images and the QEMSCAN®
images, additional theoretical information on the grade of the REE minerals for
various particle sizes is generated. The particle grade information determined
how much gangue andhow much REE mineralization is present in each size
fraction. Information is necessary to determine the benefits ofupgrading the
mineralized feed at different particle sizes.
Size fractions greater than 6 mm can be viably
sorted using XRT sorters while size fractions greater than 0.6 mm are more
amendable to sorting using dense medium separation (DMS) and spirals. Size
fractions less than 0.6 mm are concentrated via hydrometallurgy processes. The
average distribution of the REE minerals and the theoretical grade of the XRT
sorted mineralized feed for the six core samples, for each size fraction within
20 mm, 10 mm, and 6 mm particles are shown in Table 1.
About the Wicheeda REE Property
The 1,708 hectare Wicheeda REE Property, located
approximately 80 km northeast of the city of Prince George, British Columbia,
is readily accessible by all-weather gravel roads and is nearby to
infrastructure, including power transmission lines, the CN railway and major
highways.
Geologically, the property is situated in the
Foreland Belt and within the Rocky Mountain Trench, a major continental
geologic feature. The Foreland Belt contains part of a large alkaline igneous
province, stretching from the Canadian Cordillera to the southwestern United
States, which includes several carbonatite and alkaline intrusive complexes
hosting the Aley (niobium), Rock Canyon (REE), and Wicheeda (REE) deposits.
Qualified Person
The scientific and technical information contained
in this news release as it relates to the Wicheeda REE Property has been
reviewed and approved by Kristopher J. Raffle, P.Geo. (BC) Principal and
Consultant of APEX Geoscience Ltd. of Edmonton, AB, a director of Defense
Metals and a "Qualified Person" as defined in National Instrument
43-101 – Standards of Disclosure for Mineral Projects.
Mr. Raffle verified the data disclosed which includes a review of the
analytical and test data underlying the information and opinions contained
therein.
Methodology and QA/QC
A total of 6 core samples were selected for X-ray
transmission measurements. Each sample was imaged using 2-dimensional X-ray
transmission measurements to identify greyscale differences in the core samples.
The greyscale levelsassociated with the various minerals are identified using
QEMSCAN® measurements. The X-ray images are thenmodified using a defined
threshold to identify the location and dispersion of the REE minerals and
pyrite throughout the core samples. The results of this XRT amenability study
are theoretical in nature and may not be representative of actual recoveries
obtainable via direct testing using XRT sorting and DMS.
Using image analysis techniques on the QEMSCAN®
images, the percent removal of low-grade mineralization iscalculated for
different theoretical size fractions. The size fractions used in this study
were: 20 mm, 10 mm, 6 mm, 3 mm,1.2 mm, and 0.6 mm rectangular particles.
Defense Metals is not aware of any drilling, sampling,
recovery, or other factors that could materially affect the accuracy or
reliability of the data referred to herein. The SRC operates in accordance with
ISO/IEC 17025:2005 (CAN-P-4E), General Requirements for the Competence of
Mineral Testing and Calibration Laboratories. SRC is independent of Defense
Metals Corp. and the Qualified Person.
About Defense Metals Corp.
Defense Metals Corp. is a mineral exploration
company focused on the acquisition of mineral deposits containing metals and
elements commonly used in the electric power market, military, national
security and the production of "GREEN" energy technologies, such as,
high strength alloys and rare earth magnets. Defense Metals has an option to
acquire 100% of the 1,708 hectare Wicheeda Rare Earth Element Property located
near Prince George, British Columbia, Canada. Defense Metals Corp. trades in
Canada under the symbol "DEFN" on the TSX Venture Exchange, in the
United States, under "DFMTF" on the OTCQB and in Germany on the Frankfurt
Exchange under "35D".
For further information, please contact:
Todd Hanas, Bluesky Corporate Communications Ltd.
Vice President, Investor Relations
Tel: (778) 994 8072
Email: todd@blueskycorp.ca
Neither the TSX Venture Exchange nor its Regulation Services Provider (as
that term is defined in the policies of the TSX Venture Exchange) accepts
responsibility for the adequacy or accuracy of this news release.
Cautionary Statement Regarding
"Forward-Looking" Information
This news release contains "forward‐looking information or
statements" within the meaning of applicable securities laws, which may
include, without limitation, statements relating to proceeding to a series of
confirmatory XRT sorting optimization tests and the expected, plans for the
Wicheeda Property, the advancement and development of the Wicheeda Property,
the technical, financial and business prospects of the Company, its project and
other matters. All statements in this news release, other than statements of
historical facts, that address events or developments that the Company expects
to occur, are forward-looking statements. Although the Company believes the
expectations expressed in such forward-looking statements are based on
reasonable assumptions, such statements are not guarantees of future
performance and actual results may differ materially from those in the
forward-looking statements. Such statements and information are based on
numerous assumptions regarding present and future business strategies and the
environment in which the Company will operate in the future, including the
price of rare earth elements, the ability to achieve its goals, that general
business and economic conditions will not change in a material adverse manner,
that financing will be available if and when needed and on reasonable terms.
Such forward-looking information reflects the Company's views with respect to
future events and is subject to risks, uncertainties and assumptions, including
those filed under the Company's profile on SEDAR at www.sedar.com. While such estimates and assumptions are
considered reasonable by the management of the Company, they are inherently
subject to significant business, economic, competitive and regulatory uncertainties
and risks. Factors that could cause actual results to differ materially from
those in forward looking statements include, but are not limited to, continued
availability of capital and financing and general economic, market or business
conditions, adverse weather conditions, failure to maintain or obtain all
necessary government permits, approvals and authorizations, failure to maintain
community acceptance (including First Nations), decrease in the price of rare
earth elements, the impact of Covid-19 or other viruses and diseases on the
Company's ability to operate increase in costs, litigation, and failure of
counterparties to perform their contractual obligations. The Company does not
undertake to update forward‐looking statements or forward‐looking
information, except as required by law.
[1] Technical Report on the Wicheeda Property, British Columbia,
effective June 27, 2020 and prepared by APEX Geoscience Ltd. (Steven J.
Nicholls, B.A. Sc., MAIG and Kristopher J. Raffle, B.Sc., P.Geo.) is available
under Defense Metals Corp.'s profile on SEDAR (www.sedar.com)
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