Appia Announces Excellent Desorption Results From Its Four New Ionic Adsorption Clay Targets at the PCH Project in Goias, Brazil
Appia Announces Excellent Desorption
Results From Its Four New Ionic Adsorption
Clay Targets at the PCH Project in Goias,
Brazil
Toronto, Ontario--(Newsfile Corp. - February 4, 2025) - Appia Rare Earths & Uranium Corp.
(CSE: API)
(OTCQB: APAAF) (FWB: A0I0) (MUN: A0I0) (BER: A0I0)
(the "
Company
" or
"Appia"
) announces
updated results from the Ionic Adsorption Clay (IAC) rare earth elements (REE) targets Maia, Electra,
Taygeta and Merope at the PCH project (Map 1). (See August 20
th
, 2024 Press Release -
Click Here
) A
total of 1,173 samples from 163 Auger drillholes were tested and confirm the presence of extensive IAC
style REE mineralization and results show excellent desorption/recovery of the critical Magnet Rare
Earth Oxides (MREO).
Tom Drivas, CEO, stated, "These excellent desorption results further confirm the presence of extensive
IAC REE mineralization. The potential from these new zones could significantly increase the known
quantity and quality of IAC mineralization as the auger drilling has only tested the upper 5-8 metres of the
system with most drill holes ending in mineralization. This is in addition to the recently reported high
grade hardrock carbonatitic breccia REE mineralization in the SW Extension zone of Target IV which
was announced last week (see Press Release -
Click Here
). We are planning to execute additional
drilling to further define key target zones, and to update the current Mineral Resource Estimate (MRE) of
the PCH project while preparing for the execution of a Preliminary Economic Assessment (PEA) report."
Highlights:
Taygeta and Merope targets presented high potential IAC REE results with NdPr average
desorption ranging from 35.0% to 60.1% and DyTb desorption from 37.3% to 43.9% in average
and are considered the best targets to develop substantial Magnet Rare Earth Oxides (MREO)
resources.
Taygeta Target overall recoveries:
33.8% Total Rare Earth Oxides (TREO), 34.5%
Heavy Rare
Earth Oxides (HREO), 60.1% NdPr and 37.3% DyTb.
Merope Target overall recoveries:
29.0% TREO, 44.2% HREO, 35.0% NdPr and 43.9% DyTb.
Maia Target overall recoveries:
34.0% TREO, 47.4% HREO, 69.0% NdPr and 49.6% DyTb.
Electra Target overall recoveries:
11.3% TREO, 28.5% HREO, 15.1% NdPr and 22.6% DyTb.
The full set of results are available through this
LINK
and the auger hole coordinates are available
through this
LINK
.
Table 1 - Overall average sample results from all auger holes tested by target. To view the full
list of results, please
click here
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5416/239502_4f8df69bc4cb99cc_001full.jpg
*Total Rare Earth Oxides: TREO = Y2O3 + Eu2O3 + Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 + Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + La2O3 + CeO2 +
Pr6O11 + Nd2O3 + Sm2O3
*Heavy Rare Earth Oxides: HREO = Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 + Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + Y2O3
*NdPr = Nd2O3+Pr6O11
*DyTb = Dy2O3+Tb4O7
*Element to Oxide Conversion Factor - Cerium CeO2 1.2284,, Dysprosium Dy2O3 1.1477, Erbium Er2O3 1.1435, Europium Eu2O3 1.1579, Gadolinium
Gd2O3 1.1526, Holmium Ho2O3 1.1455, Lanthanum La2O3 1.1728, Lutetium Lu2O3 1.1371, Neodymium Nd2O3 1.1664, Praseodymium Pr6O11
1.2082, Samarium Sm2O3 1.1596,, Terbium Tb4O7 1.1762, Thulium Tm2O3 1.1421, Yttrium Y2O3 1.2699, Ytterbium Yb2O3 1.1387
* ppm=parts per million
* Desorbability results were conducted using Ammonium Sulfate at 0.5M, pH4 or pH2, for 20 minutes.
Overall desorption results from the entire drilled interval from 118 auger holes (Table 1 above) show a
high desorption for targets Taygeta, Merope and Maia where the Heavy Rare Earth Oxides (HREO)
recoveries are higher than the light rare earth oxides.
Desorbability tests were conducted by ALS using an Ammonium Sulfate solution at 0.5M, pH4, for 20
minutes at room temperature and part of the samples were conducted at 0.5M Ammonium Sulfate, pH2,
for 20 minutes at room temperature. No significant difference was found on results obtained from
selected samples assayed under pH2 and pH4 as presented in table through this
LINK
.
Individual element recoveries (Table 2) consistently indicate high average recovery for Magnet Rare
Earth Oxides (MREO) consisting of Neodymium (Nd), Praseodymium (Pr), Dysprosium (Dy) and
Terbium (Tb).
Table 2 - Overall target average desorption recoveries by rare earth element
.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5416/239502_4f8df69bc4cb99cc_002full.jpg
Several auger drillholes stopped at mineralization due to the water table indicating the potential to grow
the mineralized zone at depth.
The detailed location of the zones tested on each target are presented on maps 2, 3, 4 and 5 below. The
mineralization is also open to the south and to the west of Taygeta IAC target, Northeast of Merope IAC
target and to the south of Electra IAC target.
The results are from auger holes in the entire target and all of them presented smaller zones with better
grades and recoveries and will be subject to further delineation and expansion drilling.
Map 1 - Location of PCH Project main targets.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5416/239502_4f8df69bc4cb99cc_003full.jpg
Map 2 - Map of Taygeta IAC Target auger holes
.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5416/239502_4f8df69bc4cb99cc_004full.jpg
Map 3 - Map of Merope IAC Target auger holes
.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5416/239502_4f8df69bc4cb99cc_005full.jpg
Map 4 - Map of Maia IAC Target auger holes
.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5416/239502_4f8df69bc4cb99cc_006full.jpg
Map 5 - Map of Electra IAC Target auger holes
.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5416/239502_4f8df69bc4cb99cc_007full.jpg
QAQC
Auger drillholes are vertical and reported intervals are true thickness. The material produced from auger
holes are sampled at one metre intervals,resulting in average sample sizes of 5-10 kg,
no crushing or
screening was executed. Quartering of the material was performed at Appia's logging facility using a
riffle splitter and continued splitting until a representative sample weighing approximately 500g each was
obtained, bagged in a resistant plastic bag, labeled, photographed, and stored for shipment.
The bagged samples are sent to the ALS laboratory in Goiânia, Goias for initial preparation and sent to
Lima Peru for final analysis. In addition to the internal QA/QC of the ALS Lab, Appia includes its own
control samples in each batch of samples sent to the laboratory.
Quality control samples, such as blanks, duplicates, and standards (CRM) were inserted into each
analytical run. For all analysis methods, the minimum number of QA/QC samples is two standard, one
duplicate and one blank, introduced in each batch which comprises full-length hole(s). The rigorous
procedures are implemented during the sample collection, preparation, and analytical stages to insure
the robustness and reliability of the analytical results.
All analytical results reported herein have passed internal QA/QC review and compilation. All assay
results of RC samples were provided by ALS, a Certified Laboratory, which performed their measure of
the concentration of rare earth elements (REE) with the ME-MS81 analytical method that uses lithium
borate fusion prior acid dissolution and Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Major
Element Oxides were done using ME_ICP06 analytical method using lithium borate fusion and
inductively coupled plasma atomic emission spectroscopy (ICP-AES)
Desorption analysis was performed by ALS using ME-MS19a analytical method with samples being
crushed until 90% of material is smaller than 2 millimeters, no screening, followed by leaching using a
solution of Ammonium Sulphate at 0.5 molar, pH 4, room temperature for 20 minutes. Some samples
used desorption analysis using ME-MS19 analytical method with samples being leached with a solution
of Ammonium Sulphate at 0.5 molar, pH 2, room temperature for 20 minutes. The leached solution
content was analysed using ICP-AES/ICP-MS. No significant difference was found on results obtained
from selected samples assayed under pH2 and pH4.
The technical information in this news release, including the information related to geology, drilling, and
mineralization, has been reviewed and approved by Andre L. L. Costa, Appia's VP Exploration for
Brazil. Mr. Costa is a APEGS Professional Geoscientist (P.Geo.) and a Fellow of Australian Institute of
Geoscientists (FAIG), a Qualified Person (QP) as defined by National Instrument 43-101 - Standards of
Disclosure for Mineral Projects.
About Appia Rare Earths & Uranium Corp. (Appia)
Appia is a publicly traded Canadian company in the rare earth element and uranium sectors. The
Company holds the right to acquire up to a 70% interest in the PCH Ionic Adsorption Clay Project (See
June 9
th
, 2023 Press Release - Click
HERE
) which is 42,932.24 ha. in size and located within the Goiás
State of Brazil. (See January 11
th
, 2024 Press Release -
Click HERE
) The Company is also focusing on
delineating high-grade critical rare earth elements and gallium on the Alces Lake property, and exploring
for high-grade uranium in the prolific Athabasca Basin on its Otherside, Loranger, North Wollaston, and
Eastside properties. The Company holds the surface rights to exploration for 94,982.39 hectares
(234,706.59 acres) in Saskatchewan. The Company also has a 100% interest in 13,008 hectares
(32,143 acres), with rare earth elements and uranium deposits over five mineralized zones in the Elliot
Lake Camp, Ontario.
Appia has 153 million common shares outstanding, 177 million shares fully diluted.
Cautionary note regarding forward-looking statements: This News Release contains forward-looking
statements which are typically preceded by, followed by or including the words "believes", "expects",
"anticipates", "estimates", "intends", "plans" or similar expressions. Forward-looking statements are
not a guarantee of future performance as they involve risks, uncertainties and assumptions. We do
not intend and do not assume any obligation to update these forward-looking statements and
shareholders are cautioned not to put undue reliance on such statements.
Neither the Canadian Securities Exchange nor its Market Regulator (as that term is defined in the
policies of the CSE) accepts responsibility for the adequacy or accuracy of this release.
For more information, visit
www.appiareu.com
As part of our ongoing effort to keep investors, interested parties and stakeholders updated, we have
several communication portals. If you have any questions online (
X
,
,
) please feel
free to send direct messages.
To book a one-on-one 30-minute Zoom video call, please
click here.
Contact:
Tom Drivas, CEO and Director
(c) (416) 876-3957
(e)
Stephen Burega, President
(c) (647) 515-3734
(e)
To view the source version of this press release, please visit
https://www.newsfilecorp.com/release/239502