Heavy Uncommon Earths Restricted (“HRE” or “the Firm”) proclaims assay outcomes from preliminary reference sampling at its Radium Hill venture in South Australia. The Firm lately introduced it had acquired an 80% preliminary curiosity within the uranium rights on three initiatives from Havilah Sources Restricted (Determine 1) (seek advice from ASX announcement 21 October 2024). These rights lengthen to uncommon earths (REE) and scandium (Sc) at Radium Hill.
- Assays of uranium mineralization from Radium Hill return extremely elevated uncommon earths (as much as 3.6% TREO) and scandium (as much as 1081 ppm Sc2O3)
- HRE lately introduced the acquisition of an 80% preliminary curiosity in uranium rights on a extremely important land package deal in South Australia’s Curnamona Province, together with the Radium Hill Mission
- These mineral rights lengthen to uncommon earths and scandium at Radium Hill
- Uncommon earths have been first recognised at Radium Hill in 1908
- Educational research of Radium Hill mineralization have recorded values of as much as 7% REE12 and 3000 ppm Sc3
- 2.6 million lbs @ 0.12% (1,200 ppm) U3O8 was mined at Radium Hill between 1954 and 1961
Samples have been analysed to check the potential for REE and Sc in uraniferous Radium Hill lode- fashion mineralization. These lodes are recognized to increase from the historic Radium Hill mine for no less than 7 kilometres in a northeast path to Bonython Hill (Determine 2). A complete of 5 samples have been collected from historic dumps, each throughout the historic Radium Hill Mine web site, which is excluded from HRE’s Radium Hill venture, and from lode extensions that are within the venture space.
Mining at Radium Hill first occurred in 1908 with the primary section of mining going down between 1954-1961. Though the primary focus of mining was on manufacturing of uranium, the presence of great portions of uncommon earths have been recognized from the earliest phases.
Quickly after discovery of Radium Hill in 1906, the well-known geologist, Antarctic explorer and educational Sir Douglas Mawson, described a beforehand unknown uranium mineral which he named ‘davidite’ and famous the brand new mineral accommodates “a notable quantity of uncommon earths, uranium, vanadium, and chromium”.4
Throughout the primary mining section when 2.6 million lbs of U3O8 have been mined, there was no try to extract uncommon earths or different metals till the final phases of the operation when a solvent extraction plant was constructed on the location by AMDEL (1960‐62). This plant produced primarily scandium with some yttrium oxide (Y2O3) and different uncommon earth oxides though manufacturing figures are unclear and ore assays unavailable.
Of the 5 samples within the present program, three (samples RH-1, RH-2, RH-C) have been collected from ore dumps adjoining to the historic Radium Hill processing plant, one (RH-B) from a dump adjoining to a historic shaft at Radium Hill North and one other (RH-A) from a stockpile at Bristowe’s prospect. Sampling was designed to substantiate historic stories of uncommon earths, scandium and different parts in Radium Hill-style uraniferous lode mineralization.
Assay outcomes returned important values for all 5 samples (Desk 1).
Desk 1: Radium Hill reference pattern assays
Along with uranium, it’s obvious there are excessive concentrations of scandium and uncommon earths in these davidite-bearing samples which confirms the historic observations. The Firm emphasises that these samples have been collected and assayed for the aim of checking the concentrations of metals related to uranium in an effort to verify the validity of earlier scant literature stories. These pattern outcomes usually are not presupposed to be consultant of the mineralization within the area, which might require systematic sampling, together with drilling and/or costeaning, to achieve any agency conclusions. Nevertheless, the related steel outcomes are sufficiently encouraging to warrant detailed observe up and inclusion within the Mission’s future assay protocols and metallurgical remedy concerns.
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