Appia Announces Excellent Desorption Results From Target IV Ionic Adsorption Clay Rare Earth Mineralization in Brazil
Appia Announces Excellent Desorption
Results From Target IV Ionic Adsorption Clay
Rare Earth Mineralization in Brazil
Toronto, Ontario--(Newsfile Corp. - July 17, 2024) - Appia Rare Earths & Uranium Corp.
(CSE: API)
(OTCQX: APAAF) (FSE: A0I0) (MUN: A0I0) (BER: A0I0)
(the "
Company
" or
"Appia"
) announced
today the latest desorption test results for rare earth elements (REE) from the Target IV Ionic Adsorption
Clay (IAC) deposit at the PCH project in Goias, Brazil. A total of 182 samples from 17 Reverse
Circulation (RC) drillholes were sent to ALS Laboratories in Lima, Peru (ALS) and the results
consistently confirmed the REE IAC mineralization style on the majority of Target IV developed over the
Ipora Granite and representing improved recoveries of Magnet Rare Earth Oxides (MREO) and Heavy
Rare Earth Oxides (HREO) as expected.
Stephen Burega, President, stated, "The combination of the significant size of mineralized area, high
grades, good recoveries and rapid desorption, confirm the attractiveness of the deposit as an eventual
world-class project. With each batch of desorption tests, we further our overall understanding of the
nature of the IAC mineralization found at the PCH project, and we are very excited by the increase in
recovery rates."
Highlights
Discrete desorption interval samples from RC drillholes located on Ipora Granite lithology (see
Map 1) returned recoveries up to:
47.72%
TREO on drillhole PCH-RC-029 from 5 to 6 metres.
67.18%
HREO on drillhole PCH-RC-045 from 6 to 7 metres.
58.85%
Dy+Tb on drillhole PCH-RC-049 from 3 to 4 metres.
81.67%
Nd+Pr on drillhole PCH-RC-034 from 3 to 4 metres.
The most significant recovered desorption intercepts for the main mineralized zone were:
PCH-RC-034 [email protected]% TREO; 49.18% HREO; 57.29% NdPr; 46.22% TbDy from 3m.
PCH-RC-049 [email protected]% TREO; 51.87% HREO; 49.46% NdPr; 46.74% TbDy from 3m.
PCH-RC-045 [email protected]% TREO; 53.77% HREO; 32.47% NdPr; 43.32% TbDy from 4m.
PCH-RC-048 [email protected]% TREO; 39.80% HREO; 48.13% NdPr; 36.58% TbDy from 0m.
PCH-RC-076 [email protected]% TREO; 51.74% HREO; 46.49% NdPr; 45.14% TbDy from 3m.
PCH-RC-014 [email protected]% TREO; 45.64% HREO; 48.36% NdPr; 38.53% TbDy from 0m.
The results of the main mineralized zone and from the full drillhole length from all tested drillholes
are presented in Table 1 below. The full set of results are available through this
LINK
.
Desorbability results were conducted by ALS using an Ammonium Sulfate solution at 0.5M, pH2,
for 20 minutes at room temperature.
A comparison of 11 ALS and previously reported results from AGS Laboratories in La Serena,
Chile (AGS) using Ammonium Sulfate 0.5M, pH4, 20 minutes, and room temperature
(
See May 6
th
2024 press release
) from the same drillhole intervals has been completed
which shows a high
correlation and consistency between the results (Table 2).
Stephen Burega, continued, "Our work programs for the upcoming quarter include ongoing auger drilling
and desorption testing on the 4 newly identified targets (See press releases
May 14
th
, 2024
and
May
22
nd
, 2024
) which combine for a total area of over 2,500 hectares as well as planning for the
development of a Preliminary Economic Assessment (PEA) of Target IV and the Buriti Zones."
Andre Costa, VP Exploration for Brazil, commented, "We have achieved a more comprehensive
desorption testing method which covers the full length of drillholes situated on Ipora Granite.
These
results give us more confidence and a clear 'signature' for the IAC mineralization, and we have every
expectation based on this signature that similar mineralization can be expected on the newly discovered
PCH project targets - Maia, Electra, Taygeta and Merope."
HOLEID
FROM
TO
TREO
HREO
PrNd
TbDy
TREO D
HREO D
PrNd D
TbDy D
TREO
REC
HREO
REC
PrNd
REC
TbDy
REC
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
%
%
%
%
PCH-RC-014
0.00
12.00
857.62
118.36
158.58
14.72
151.27
35.75
52.75
3.67
12.28
22.87
22.82
19.00
PCH-RC-014
0.00
5.00
1362.53
161.21
244.38
20.26
341.30
77.88
120.52
8.06
24.91
45.64
48.36
38.53
PCH-RC-019
0.00
7.00
1205.01
145.32
245.24
19.11
115.58
29.40
38.94
3.17
10.95
21.23
17.95
17.72
PCH-RC-019
1.00
3.00
757.15
103.58
160.45
13.43
170.21
34.82
61.63
4.00
22.67
33.85
38.93
30.09
PCH-RC-029
0.00
16.00
755.24
150.18
151.32
17.81
174.01
54.80
55.01
6.01
20.80
33.37
30.74
30.80
PCH-RC-029
0.00
9.00
932.90
168.80
183.12
20.56
264.09
76.83
85.39
8.58
29.38
43.89
45.12
40.99
PCH-RC-034
0.00
13.00
1281.79
218.99
250.52
26.69
266.78
90.90
92.97
10.04
26.64
43.79
47.78
40.69
PCH-RC-034
3.00
11.00
1461.31
261.55
296.54
31.67
339.72
114.41
121.56
12.68
32.94
49.18
57.29
46.22
PCH-RC-036
0.00
5.00
1341.38
177.20
242.14
21.39
198.98
43.46
72.14
5.35
19.05
24.76
35.25
25.84
PCH-RC-036
1.00
4.00
1077.44
165.20
190.51
18.80
207.61
44.56
77.10
5.40
22.27
26.96
41.97
28.78
PCH-RC-037
0.00
9.00
1494.76
164.56
273.83
19.22
204.75
55.00
72.07
6.08
12.54
29.93
22.78
28.79
PCH-RC-037
1.00
5.00
2040.81
212.33
373.46
24.41
371.33
97.89
132.71
10.70
20.48
46.26
37.63
44.46
PCH-RC-040
0.00
15.00
3933.60
273.98
760.80
38.81
224.86
70.74
77.90
8.60
9.26
29.00
18.48
26.26
PCH-RC-040
5.00
12.00
2362.08
256.08
484.68
32.96
236.03
86.11
76.27
9.64
11.88
33.83
18.20
29.89
PCH-RC-042
0.00
11.00
737.02
117.34
140.21
14.01
109.22
29.83
38.33
3.40
14.50
24.59
26.45
23.91
PCH-RC-042
1.00
5.00
791.41
121.86
156.57
14.35
201.63
45.50
74.61
5.24
24.63
36.15
46.09
35.68
PCH-RC-043
0.00
12.00
1992.65
151.59
348.49
19.00
292.78
61.06
106.60
6.55
14.20
37.59
29.01
32.37
PCH-RC-043
1.00
8.00
2218.37
175.15
418.05
21.68
382.00
79.10
140.05
8.37
17.40
44.45
33.73
38.20
PCH-RC-044
0.00
11.00
1432.77
131.39
251.61
16.37
177.07
44.78
60.52
4.57
12.74
29.94
22.99
25.01
PCH-RC-044
2.00
8.00
1424.13
147.33
287.15
18.03
234.08
58.73
80.97
5.81
16.64
34.14
28.07
28.13
PCH-RC-045
0.00
12.00
1333.04
204.77
244.66
27.56
214.32
92.65
61.29
9.74
14.24
36.33
22.10
28.91
PCH-RC-045
4.00
8.00
1578.77
300.87
331.44
39.35
383.41
174.98
109.68
18.35
23.09
53.77
32.47
43.32
PCH-RC-047
0.00
10.00
1364.18
211.15
265.64
25.76
282.46
83.61
103.67
8.73
18.12
33.72
34.40
29.18
PCH-RC-047
3.00
9.00
1650.59
269.69
334.35
32.66
376.54
112.17
138.91
11.62
22.00
38.69
40.76
33.26
PCH-RC-048
0.00
7.00
792.58
133.50
150.53
16.49
175.33
53.07
59.95
5.68
22.03
38.24
39.03
33.65
PCH-RC-048
0.00
5.00
798.86
134.65
143.37
16.23
205.77
55.95
72.67
6.12
25.89
39.80
48.13
36.58
PCH-RC-049
0.00
9.00
910.76
177.63
174.75
20.59
227.44
81.56
77.59
8.60
22.86
41.57
38.97
37.96
PCH-RC-049
3.00
7.00
1014.89
210.94
208.00
24.15
322.83
115.91
111.49
12.03
29.92
51.87
49.46
46.74
PCH-RC-076
0.00
10.00
1278.40
170.45
243.34
21.40
251.95
69.52
85.20
7.50
20.27
38.05
35.81
33.49
PCH-RC-076
3.00
8.00
1336.27
204.89
273.64
24.98
374.44
106.46
128.27
11.31
27.97
51.74
46.49
45.14
PCH-RC-077
0.00
18.00
1058.82
134.81
189.89
15.88
142.34
42.49
47.86
4.16
11.22
27.55
19.88
22.59
PCH-RC-077
2.00
8.00
1373.45
187.05
275.25
22.64
327.72
87.08
117.49
8.68
23.29
45.50
41.64
37.63
PCH-RC-146
0.00
7.00
1932.86
265.62
396.18
33.77
271.27
99.69
96.21
10.26
13.16
34.98
22.47
28.64
PCH-RC-146
3.00
6.00
2206.46
338.78
504.89
42.22
411.81
163.22
144.35
16.13
17.80
47.17
27.18
37.44
*Total Rare Earth Oxides: TREO = Y2O3 + Eu2O3 + Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 + Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + La2O3 + Ce2O3 +
Pr2O3 + Nd2O3 + Sm2O3
*Heavy Rare Earth Oxides: HREO = Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 + Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + Y2O3
*NdPr = Nd2O3+Pr2O3
*DyTb = Dy2O3+Tb4O7
*Element to Oxide Conversion Factor - Cerium Ce2O3 1.1713,, 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 Pr2O3 1.1703,
Samarium Sm2O3 1.1596, Terbium Tb2O3 1.1510, Terbium Tb4O7 1.1762, Thulium Tm2O3 1.1421, Yttrium Y2O3 1.2699, Ytterbium Yb2O3 1.1387
* Desorbability results were conducted using Ammonium Sulfate at 0.5M, pH2, for 20 minutes.
Table 1 - Full length and main desorption zone (bold) recovery results of all drillholes tested.
To view the full list of results, please
click here
.
Map 1 - Listing of RC drillholes entirely tested for REE desorption from Target IV.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/5416/216810_689dbf0c7448b920_001full.jpg
HOLEID
FROM
TO
La2O3
Ce2O3
Pr2O3
Nd2O3
Sm2O3
Eu2O3
Gd2O3
Tb4O7
Dy2O3
Ho2O3
Er2O3
Tm2O3
Yb2O3
Lu2O3
Y2O3
U
PCH-
RC-047
6
7
71.38
6.16
20.96
88.87
19.29
4.21
13.06
2.1
11
2.14
6
0.83
5.94
0.9
80.97
0.26
PCH-
RC-047
6
7
85.73
7.98
26.69
118.97
22.21
4.39
16.71
2.32
12.85
2.51
7.11
1.05
6.39
0.95
98.29
0.57
PCH-
RC-047
7
8
40.06
9.19
12.18
54.54
12
2.75
8.26
1.28
6.81
1.33
3.87
0.55
3.88
0.59
55.46
0.03
PCH-
RC-047
7
8
51.37
16.11
17.44
82.35
15.54
3.11
11.35
1.54
8.58
1.75
5.1
0.76
4.62
0.71
73.53
0.62
PCH-
RC-014
3
4
94.94
0.61
14.71
55.11
8.2
1.79
5.99
0.81
4.04
0.76
1.91
0.23
1.37
0.2
40.76
0.04
PCH-
RC-014
3
4
223.42
5.61
42.26
177.29
23.89
4.74
19.02
2.53
12.68
2.54
7.38
0.82
4.92
0.72
108.83
1.02
PCH-
RC-014
4
5
66.62
0.57
11.21
42.55
6.44
1.38
4.59
0.63
3.05
0.58
1.5
0.18
1.08
0.16
30.05
0.06
PCH-
RC-014
4
5
90.77
2.2
17.97
78.5
10.58
2.09
8.34
1.09
5.49
1.11
3.21
0.36
2.19
0.32
48.38
0.54
PCH-
RC-029
3
4
107.76
0.71
17.61
64.17
10.57
2.32
7.04
1.01
4.81
0.87
2.22
0.27
1.65
0.23
35.07
0.44
PCH-
RC-029
3
4
155.4
2.06
28.09
115.12
16.93
3.5
12.74
1.75
8.63
1.61
4.59
0.53
3.19
0.44
53.97
2.72
PCH-
RC-037
4
5
53.43
6.02
10.07
38.52
7.39
1.71
5.83
0.98
5.26
1.02
2.69
0.34
2.23
0.34
43.07
0.05
PCH-
RC-037
4
5
52.54
7.73
13.93
52.37
9.27
1.93
8.46
1.23
7.02
1.38
3.81
0.52
3.02
0.46
53.84
0.32
PCH-
RC-040
4
5
34.07
1.01
6.09
24.55
4.04
1.01
2.84
0.4
1.88
0.34
0.81
0.1
0.6
0.09
14.9
0.08
PCH-
RC-040
4
5
62.16
2.94
17.97
78.5
12.93
3.11
10.18
1.41
7.52
1.23
3.28
0.41
2.47
0.34
35.56
2.41
PCH-
RC-040
14
15
19.67
1.04
4.65
23.89
6.04
2.15
6.85
1.08
5.61
1.02
2.44
0.27
1.6
0.24
42.91
0.03
PCH-
RC-040
14
15
28.03
8.23
11.57
67.77
15.71
5.19
17.75
2.53
13.49
2.22
5.61
0.64
3.66
0.5
70.35
0.99
PCH-
RC-045
1
2
13.22
0.78
1.96
6.87
1.09
0.22
0.76
0.1
0.51
0.09
0.24
0.03
0.2
0.03
4.36
0.04
PCH-
RC-045
1
2
18.94
3.05
3.94
15.63
2.73
0.49
1.94
0.27
1.39
0.25
0.72
0.09
0.6
0.09
7.44
0.63
PCH-
RC-047
6
7
71.38
6.16
20.96
88.87
19.29
4.21
13.06
2.1
11
2.14
6
0.83
5.94
0.9
80.97
0.26
PCH-
RC-047
6
7
85.73
7.98
26.69
118.97
22.21
4.39
16.71
2.32
12.85
2.51
7.11
1.05
6.39
0.95
98.29
0.57
PCH-
RC-047
7
8
40.06
9.19
12.18
54.54
12
2.75
8.26
1.28
6.81
1.33
3.87
0.55
3.88
0.59
55.46
0.03
PCH-
RC-047
7
8
51.37
16.11
17.44
82.35
15.54
3.11
11.35
1.54
8.58
1.75
5.1
0.76
4.62
0.71
73.53
0.62
Table 2 - Comparison between 11 interval samples assayed from ALS and the previously
announced AGS desorption testing.
On March 1
st
, 2024, the Company announced its maiden Mineral Resource Estimate (MRE) on Target
IV and the Buriti Zone (
Click here for the Press Release
), and the companion NI 43-101 technical report
on the PCH Project was filed on April 16
th
, 2024. (
Click here for the Press Release
)
QAQC
Reverse Circulation (RC) drillholes are vertical and reported intervals are true thickness. The material
produced from drill holes are sampled at one metre intervals, resulting in average sample sizes of 10-25
kg. 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 with 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.
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, current Appia's VP Exploration
for Brazil, with more than 29 years of relevant experience. 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 40,963.18 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 136.8 million common shares outstanding, 145.5 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/216810