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Deposit Synonyms
Billeroo Central; Billeroo Dam; Billeroo East; Billeroo Iron; Billeroo South; Billeroo South Central; Billeroo West
Mineral District
Deposit Summary
small deposit of hematite, with surface samples assaying 65.5% Fe. Drilling in 2012 by Pepininni Minerals for sample for testwork. Testwork gave high grade magnetite concentrate at 150 micron grind size for >90% recovery.
Deposit Description
BILLEROO PEAK, historical mapping identified several small hills of massive hematite to coarse-grained magnetite iron formation over a strike length of 1.4km, with surface samples assaying from 47.4 to 65.5% Fe, SiO2 from 1.2-30.3%, P2O5 from 0.065 to 2%, and S from 0.02 to 0.045%. 1962 estimated resources were calculated for 6 individual sub-areas for an average resource of 100,000 tonne per 30m depth, at average grade 48%Fe. Preliminary metallurgical testwork indicated near surface ore mineralogy of martite, with depth coarse magnetite in the unoxidised zone. Surface samples to 1m depth with head grade of 49%Fe returned a concentrate at 61.8%fe from dry magnetic processing.
Pepininni Minerals Ltd drilled several ironstone hills in the immediate area in 2012 in 14 RC holes, with samples dispatched for analysis for iron. The ironstone was described as a massive hematite-magnetite to BIF to ironstone of the Koolka Ironstone Member (Peryhumuck Formation equivalent), of the Ethiudna Subgroup, Curnamona Group, with magnetic susceptibility values in the order of 400-660, Fe% variable between 43-69%Fe. A 80kg bulked sample of drill cutting was sent for testwork. Results indicated for a bulk sample with head grade 35.6%Fe a high grade magnetite concentrate of >68%Fe could be achieved for a grind to 150 micron, and with a product recovery of >90%.
Discovery Year
< 1954
Commodities
Iron
Ore Minerals
Hematite, Magnetite
Gangue Minerals
Quartz
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