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Power Metals Intersects High-Grade Lithium, Cesium and Tantalum Mineralization at West Joe and Main Dykes, Case Lake

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Power Metals Intersects High-Grade Lithium, Cesium and Tantalum Mineralization at West Joe and Main Dykes, Case Lake






Power Metals Corp.  (TSX-V: PWM) (FRANKFURT: OAA1) (OTCQB: PWRMF) is pleased to announce that drill holes have intersected high-grade Li, Cs and Ta (Lithium, Cesium and Tantalum) mineralization on the West Joe Dyke and Li and Ta mineralization on the Main Dyke, Case Lake property, Cochrane, Ontario.


Johnathan More, Chairman & CEO of Power Metals, commented “These fantastic drill results continue to impress our strong geological team. Drilling is ongoing and we are extremely excited for the next round of assays to be received from the lab.”


The lithium mineralization is mainly spodumene, but also lepidolite at West Joe and is spodumene on the Main Dyke. Cesium mineralization is pollucite at West Joe and Ta mineralization is Ta-oxides at West Joe and Main Dykes.


Assay highlights on West Joe Dyke include (Table 1):

  • 1.11 % Li2O (lithium), 2.15 % Cs2O (cesium) and 365.46 ppm Ta (tantalum) over 6.84 m, PWM-22-128 (Figure 1)
  • 1.28 % Li2O, 6.53 % Cs2O and 324.0 ppm Ta over 1.0 m, PWM-22-128
  • 1.75 % Li2O, 0.06 % Cs2O and 221.0 ppm Ta over 1.0 m, PWM-22-129
  • 1.74 % Li2O, 0.01 % Cs2O, 197.0 ppm Ta over 0.79 m, PWM-22-130.


Table 1 Assay highlights for West Joe Dyke, drill holes PWM-22-128 to 131.


Drill Hole Including From (m) To (m) Length
PWM-22-128 17.56 24.40 6.84 1.11 2.15 365.46
PWM-22-128 including 19.00 22.00 3.00 1.33 4.42 232.13
PWM-22-128 including 19.00 20.00 1.00 1.73 4.90 88.40
PWM-22-128 including 21.00 22.00 1.00 1.28 6.53 324.00
PWM-22-128 including 22.00 23.00 1.00 0.71 0.68 831.00
PWM-22-129 23.88 25.84 1.96 0.40 0.05 287.14
PWM-22-129 41.00 42.00 1.00 1.75 0.06 221.00
PWM-22-130 40.73 41.73 1.00 0.05 0.02 1487.00
PWM-22-130 54.21 56.00 1.79 1.36 0.03 174.09
PWM-22-130 including 54.21 55.00 0.79 1.74 0.01 197.00
PWM-22-131 62.60 63.63 1.03 0.77 0.03 53.10


Drill holes are oriented perpendicular to the strike length of the pegmatite, so mineralization is close to true width.


Drill hole PWM-22-131 intersected biotite-rich metasedimentary host rock with elevated Li, Rb and Cs contents from 45.89-47.30 m, 1.41m interval with 0.49 % Li2O, 3094 ppm Rb and 0.47 % Cs2O. This metasomatized host rock can be used as a pathfinder to locate blind pegmatites on the property.


Assay highlights on Main Dyke include (Table 2):

  • 1.71 % Li2O and 240.77 ppm Ta over 12.0 m, PWM-22-132 (Figure 2)
  • 1.20 % Li2O and 218.68 ppm Ta over 19.0 m, PWM-22-133.


Table 2 Assay highlights for Main Dyke, drill holes PWM-22-132 and 133.


Drill Hole Including From (m) To (m) Length
PWM-22-132 11.00 25.00 12.00 1.71 240.77
PWM-22-132 including 15.00 24.00 9.00 1.99 273.36
PWM-22-133 39.00 59.00 19.00 1.20 218.68
PWM-22-133 including 40.00 41.00 1.00 2.81 74.30
PWM-22-133 including 56.00 58.00 2.00 2.49 146.50


Drill holes are oriented perpendicular to the strike length of the pegmatite, so mineralization is close to true width.


Power Metals’ 2022 summer drill program is for 5,000 m and over 2,000 m has been completed to date. This press release reports assays received to date from drill hole PWM-22-128 to 131 on the West Joe Dyke and drill holes PWM-22-132 and 133 on the Main Dyke. The purpose of each drill hole was to infill on known mineralization to aid in a future resource estimate.


Drill hole collar coordinates are given in Table 3.


Table 3 West Joe and Main Dyke, Case Lake drill hole collar coordinates. NAD 83, Zone 17. Trimble DGPS survey with 2 cm
accuracy in the horizontal.
Drill Hole Easting (m) Northing (m) Elevation
PWM-22-128 576303.19 5431120.71 344.48 170 -45 42
PWM-22-129 576301.01 5431131.20 343.99 170 -45 52
PWM-22-130 576296.52 5431156.87 341.39 170 -45 75
PWM-22-131 576295.62 5431166.32 339.45 170 -45 87
PWM-22-132 578235.18 5431690.26 347.46 150 -45 111
PWM-22-133 578184.92 5431705.06 344.34 150 -45 177



Quality Control


The drill core was sampled so that 1 m of the Case Batholith tonalite host rock was sampled followed by 1 m long samples of the pegmatite dyke and 1 m of the Case Batholith. The sampling followed lithology boundaries so that only one lithology unit is within a sample, except for the < 20 cm pegmatite veins in tonalite which were merged into one sample. The drill core samples were delivered to SGS preparation lab in Cochrane by Power Metals’ geologists. The core was prepared at SGS Garson and analyzed at SGS Burnaby, British Columbia which has ISO 17025 certification. Every 20 samples included one external quartz blank, one external lithium standard and one core duplicate. The ore grade Li2O% was prepared by sodium peroxide fusion with analysis by ICP-OES with a detection limit of 0.002 % Li2O. The ore grade Cs2O% was prepared by acid digestion with analysis by AAS with a detection limit of 0.01 % Cs. A QA/QC review of the standards and blanks for this drill program indicate that they passed and the drill core assays are accurate and not contaminated.


Case Lake Property


Case Lake Property is located 80 km east of Cochrane, northeastern Ontario close to the Ontario-Quebec border. Case Lake Property consists of 585 cell claims in Steele, Case, Scapa, Pliny, Abbotsford and Challies townships, Larder Lake Mining Division. The Property is 10 km x 9.5 km in size with 14 identified tonalite domes. The Case Lake pegmatite swarm consists of six spodumene dykes: North, Main, South, East and Northeast Dykes on the Henry Dome and the West Joe Dyke on a new tonalite dome. The Case Lake Property is owned 100% by Power Metals Corp. A National Instrument 43-101 Technical Report has been prepared on Case Lake Property and filed on July 18, 2017.


Qualified Person


Julie Selway, Ph.D., P.Geo. supervised the preparation of the scientific and technical disclosure in this news release. Dr. Selway is the VP of Exploration for Power Metals and the Qualified Person (“QP”) as defined by National Instrument 43-101. Dr. Selway is supervising the exploration program at Case Lake. Dr. Selway completed a Ph.D. on granitic pegmatites in 1999 and worked for 3 years as a pegmatite geoscientist for the Ontario Geological Survey. Dr. Selway also has twenty-three scientific journal articles on pegmatites.


About Power Metals Corp.


Power Metals Corp. is a diversified Canadian mining company with a mandate to explore, develop and acquire high quality mining projects. We are committed to building an arsenal of projects in both lithium and high-growth specialty metals and minerals. We see an unprecedented opportunity to supply the tremendous growth of the lithium battery and clean-technology industries.



Figure 1 – Pollucite-spodumene-Ta-oxides West Joe Dyke pegmatite, Case Lake (CNW Group/POWER METALS CORP)



Figure 2 – Spodumene pegmatite, Main Dyke, drill hole PWM-22-132. (CNW Group/POWER METALS CORP)


Posted August 19, 2022

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