ACM hit high grade REEs at Rankin Dome

ACM hit high grade REEs at Rankin Dome

December 4, 2023 Off By Rueben Hale

Australian Critical Minerals (ASX:ACM) has released the results of its first RC drilling program and high-definition shallow auger sampling program at Rankin Dome Rare Earth Project in the Yilgarn region of Western Australia.

Maiden drilling program found thick rare earth mineralisation in Rankin Dome with an impressive 132 of 258 auger samples showed significant assay results up to 1365ppm TREO with all six RC drill holes returning high-grade TREO with several ending in mineralisation.

Screen Shot 2023 12 04 at 6.42.27 am

Screen Shot 2023 12 04 at 6.42.27 am

Notably, 100% of drill holes have intervals greater than 1000 ppm TREO, with grades up to 2534 ppm TREO.

The longest intercept is 111m at 913ppm TREO from 3m, and the highest multiple-meter intercept is 3m at 2026 ppm TREO from 12m in RDRC001.

Magnetic rare earths (Pr, Nd, Tb, Dy) comprised 20% to 26% of significant result intervals.

The maiden RC drilling program has clearly defined new drill targets, with the anomaly open to the north and south.

“These outstanding results confirm the prospectivity of the Rankin Dome Project,” ACM Managing Director Dean de Largie said.

“The high-definition auger sampling brings great clarity to the NW sector.

“The substantial consistent strike lengths of highly anomalous near-surface geochemistry in the auger area and consistent anomalous grades returned from the RC drilling are significant results over a broad area and validate the approach taken by the Company.

“We are continuing our exploration activity at Rankin Dome and look forward to keeping our shareholders updated with results as they are received.”

Highlight Results


  • 20m @ 1003ppm TREO from 9m; Magnet Rare Earths =21%; Pr+Nd=19% including: 5m @ 1637ppm TREO from 11m; Magnet Rare Earths =22%; Pr+Nd=20%
  • 46m @ 1003ppm TREO from 104m; Magnet Rare Earth =18%; Pr+Nd=17% RDRC002
  • 35m @ 1009ppm TREO from 6m; Magnet Rare Earths =22%; Pr+Nd=18%
  • 26m @ 985ppm TREO from 64m; Magnet Rare Earths =17%; Pr+Nd=18%,
  • 4m @ 925ppm TREO from 131m; Magnet Rare Earths =21%; Pr+Nd=20%


  • 3m @ 1110ppm TREO from 18m; Magnet Rare Earths =21%; Pr+Nd=19%
  • 13m @ 866ppm TREO from 66m; Magnet Rare Earths =23%; Pr+Nd=21%
  • 12m @ 884ppm TREO from 132m; Magnet Rare Earths =23%; Pr+Nd=20%


  • 15m @ 965ppm TREO from 5m; Magnet Rare Earths =24% ;Pr+Nd=20%
    4m @ 870ppm TREO from 59m; Magnet Rare Earths =23% ; Pr+Nd=21%
    8m @ 999ppm TREO from 75m; Magnet Rare Earths =22% ; Pr+Nd=20%


  • 35m @ 1119ppm TREO from 7m; Magnet Rare Earths =22%; Pr+Nd=18% of TREO
  • 3m @ 998ppm TREO from 81m; Magnet Rare Earths =20% ; Pr+Nd=20% RDRC006
  • 111m @ 979ppm TREO from 3m; Magnet Rare Earths =23% ; Pr+Nd=21% of TREO

About Rankin Dome
The Rankin Dome Project consists of three exploration licences in the Youanmi Terrane (Southern Cross). The company has a farm-in agreement with Kula Gold Limited (ASX: KGD) to earn a 51% joint venture interest.

About Australian Critical Minerals

ACM is an exploration company focused on developing a world-class portfolio of critical minerals projects in Western Australia. Rankin Dome (Southern Cross) Rare Earth Project and the Cooletha (Pilbara) Lithium Project are key projects.

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