High Dy+Tb enrichment: ABx’s rare earth strategy is to produce a mixed rare earth carbonate (MREC) that is enriched in dysprosium (Dy) and terbium (Tb), the two heavy rare earths with the highest supply risk. The Dy+Tb exceeds 4.3% of Deep Leads’ total rare earth oxides (TREO), which is the highest proportion of Dy and Tb of any clay-hosted rare earth resource in Australia and high by world standards. Thick zones of high-grade ionic adsorption clay rare earths with such a high proportion of Dy+Tb are extremely rare.
Favourable ore geometry: ABx’s rare earths layer is typically 4 to 7 metres thick beneath 2 to 5 metres of clay and soil, which is ideal for restoring any mined areas to productive, fertile land (see Table 1 and Figure 2).
ABx Group Managing Director and CEO, Mark Cooksey said: “Drill results in the NW Block expand the resource outline for the Deep Leads high-grade rare earth zone and also enhance the areal extent from hole DL520. DL520 is one of the nearest existing drill holes and is also where rare earth extractions of over 50% were measured using low-acid (pH 4) conditions – confirmed in desorption tests by the Australian Nuclear Science and Technology Organisation (ANSTO) and in- house tests.”
TREO is total rare earth oxides & Y2O3 (15 oxides in total). TREO-CeO2 = TREO minus ppm CeO2. High Dy+Tb intercepts.
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