Heavy Rare Earths Limited

Rare Earths Extend Beyond Existing Cowalinya Resource

Heavy Rare Earths Limited (“HRE” or “the Company”) is pleased to report initial assays from 53 of 421, or 13%, of the planned exploration and resource expansion drilling at its 100 per cent-owned Cowalinya rare earth project in the Norseman-Esperance region of Western Australia.
  • Assays received for 53 holes from HRE’s rare earth exploration and resource expansion drilling program of 421 holes at Cowalinya
  • Drilling intersects thick sequences of rare earth mineralisation in saprolite along five exploration traverses
  • Coherent zones of mineralisation discovered which are similar in nature and potential size to the Cowalinya deposit
  • Total rare earth assays of up to 2255 ppm TREO returned
  • Rare earth grades exceed the Cowalinya resource grade in 21 drill intervals up to 22 metres thick. These include:
    • AC122: 5 metres @ 1258 ppm TREO (27.6% magnet REOs) from 16 metres
      • including 2 metres @ 2255 ppm TREO from 18 metres
    • AC115: 7 metres @ 1042 ppm TREO (27.1% magnet REOs) from 22 metres
      • including 2 metres @ 1922 ppm TREO from 26 metres
    • AC110: 11 metres @ 826 ppm TREO (26.2% magnet REOs) from 18 metres
      • including 2 metres @ 1727 ppm TREO from 22 metres
    • AC136: 7 metres @ 795 ppm TREO (21.8% magnet REOs) from 14 metres
      • including 2 metres @ 1457 ppm TREO from 18 metres
    • AC142: 11 metres @ 768 ppm TREO (25.9% magnet REOs) from 15 metres
      • including 6 metres @ 1061 ppm TREO from 14 metres
    • AC137: 14 metres @ 758 ppm TREO (26.3% magnet REOs) from 15 metres
      • including 4 metres @ 1018 ppm TREO from 23 metres
    • AC130: 20 metres @ 726 ppm TREO (22.4% magnet REOs) from 18 metres
      • including 4 metres @ 1036 ppm TREO from 18 metres
      • including 2 metres @ 1013 ppm TREO from 32 metres
  • Thicker saprolite drilled to the west and south of the Cowalinya South deposit – assays pending
These 53 vertical air core holes, drilled on 200 metre centres to depths of between 7 and 52 metres, were amongst the first 92 holes drilled in the current program along five north-south and east-west lines up to 4.2 kilometres long (Figure 1). These drill lines were designed to explore for thick developments of clay-rich mineralised saprolite on the Company’s E63/1972 tenement primarily to the south and south-east, but also immediately east and west, of the Cowalinya South rare earth deposit, and be used to guide subsequent grid-based resource expansion drilling. Their locations were determined using a combination of publicly available airborne electromagnetic and magnetic, and digital elevation model data. Clay-rich saprolite has been demonstrated to host rare earth mineralisation at Cowalinya which to date has yielded 28 million tonnes @ 625 ppm TREO (total rare earth oxide) in Inferred Resources.1

Drilling by HRE in the current program has successfully intersected saprolite along all five exploration drill traverses. Saprolite averages 17.1 metres thick along these traverses which compares with 17.7 metres for the Cowalinya resource. In the subsequent 207 air core holes which are drilled on 200 x 400 metre centres mainly to the west and south of the Cowalinya South resource, and for which assays are awaited (see Figure 1), the average thickness of saprolite increases by 29.8% to 22.2 metres.

Table 1 lists rare earth assays for all mineralised intercepts in the 53 reported holes (AC110- 143, AC175-181, AC186-197) where their grade-thickness exceeds the average grade- thickness of the mineralised horizon in the Cowalinya resource (8.5 metres thick @ 625 ppm TREO). The holes that host these intercepts are highlighted in Figure 1 with the hole furthest from the Cowalinya South resource being AC136, 4.2 kilometres away.


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This article includes content from Heavy Rare Earths Limited, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.

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