Australian Bauxite CEO Ian Levy said; "ABx and Marubeni Corporation (TSE:8002) are currently conducting a A$1.5 million pre feasibility study of the Goulburn Bauxite Project, and Taralga is one of the bauxite resource study areas that continues to surprise, especially around Mt Rae, west of Taralga."
The district's deposits contain thick zones of premium grade bauxite, with good potential for more discoveries. The recent discovery hole, TG626 remains open at depth and laterally.
All deposits are gibbsite-rich (trihydrate) bauxite with very low levels of reactive silica clays and free of boehmite (monohydrate). All horizons can produce Direct Shipping or "DSO" bauxite (see Definitions).
Resource Estimation Update
Areas of thick, good quality bauxite continue to be discovered across the Taralga - Mt Rae Areas. It is intended to upgrade the resource estimate for Taralga before the end of the current Pre Feasibility Study ("PFS"), which is scheduled to conclude at the end of March. Como Engineers of Perth have been appointed to coordinate cost estimations and prepare the PFS report.
Current bauxite resources at Taralga total 25 million tonnes (see Resource Statement page 4). Metallurgical Results Encouraging: Main Production is DSO Bauxite Metallurgical tests on large samples have been done as part of the Pre Feasibility Study, with METS Engineers of Perth coordinating and summarising the testwork (report in progress).
The Goulburn district bauxite deposits typically have an upper half that contains nodules or "pisoliths" of a black, glassy material which is an emery, comprising mainly fused alumina and trace iron oxides (see Figure 4). Well-known bauxite mineralogist, Professor Eggleton of the Australian National University coined the term "PDM" for these black pisoliths which he found in bauxites from Weipa, Northern QLD. PDM stands for "poorly diffracting material" when subjected to X-ray diffraction.
Metallurgical tests on the PDM-bearing bauxite ("PDM-DSO Bx") from the Taralga area have been able to recover the PDM by gravity methods and the remaining bauxite is good-quality DSO bauxite, similar to the DSO bauxite that typically occurs in the lower half of the deposits (see Figure 4). This means that overall, DSO will represent approximately 75% to 85% of total tonnes produced from the Goulburn Bauxite Project. The recovered PDM emery material can be sold at good prices for industrial uses.
Because this PDM-bauxite layer typically has less than 15% Loss on Ignition "LOI" (see Appendix details), it was previously referred to as "Dehydrated" bauxite. It is now called PDM-DSO Bx bauxite.
Complete results are listed in the Appendix and are summarised in Table 1.
To view the complete Australian Bauxite announcement, including Tables & Figures, please refer to the following link below:
About Australian Bauxite Limited
Australian Bauxite Limited (ABx) (ASX:ABX) has started its first bauxite mine in Tasmania and holds the core of the Eastern Australian Bauxite Province. ABx’s 37 bauxite tenements in Queensland, New South Wales & Tasmania exceed 5,000 km2 and were rigorously selected for (1) good quality bauxite; (2) near infrastructure connected to export ports; & (3) free of socio-environmental constraints. All tenements are 100% owned, unencumbered & free of third-party royalties.
ABx’s discovery rate is increasing as knowledge, technology & expertise grows.
The Company’s bauxite is high quality gibbsite trihydrate (THA) bauxite & can be processed into alumina at low temperature.
ABx has declared large Mineral Resources at Inverell & Guyra in northern NSW, Taralga in southern NSW, Binjour in central QLD & in Tasmania confirming that ABx has discovered significant bauxite deposits including some of outstandingly high quality.
In Tasmania, at Bald Hill, the Company’s first bauxite mine commenced operations on schedule on 9 December 2014 – the first new Australian bauxite mine for more than 35 years.
ABx aspires to identify large bauxite resources in the Eastern Australian Bauxite Province, which is emerging as a globally significant bauxite province. ABx has created significant bauxite developments in 3 states - Queensland, New South Wales and Tasmania. Its bauxite deposits are favourably located for direct shipping of bauxite to both local and export customers.
ABx endorses best practices on agricultural land, strives to leave land and environment better than we find it. We only operate where welcomed.
Australian Bauxite Limited