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:ABZ) holds the core of the newly discovered Eastern Australian Bauxite Province. Its 37 bauxite tenements in Queensland, NSW and Tasmania covering 8,500 km2 were rigorously selected on 3 principles: 1. good quality bauxite; 2. proximity to infrastructure connected to export ports; and, 3. free of socio-environmental or native title land constraints.
All tenements are 100% owned and free of obligations for processing and third-party royalties. ABx has already discovered many bauxite deposits and new discoveries are still being made as knowledge and expertise grows.
The company's bauxite is high quality and can be processed into alumina at low temperature – the type that is in short-supply globally. Global resources declared to date are 68 million tonnes. At the company's first drilling prospect in Inverell, northern NSW, an interim resource of 35 million tonnes has been reported from drilling 15% to 20% of the area prospective for bauxite and a resource of 25 million tonnes of bauxite has been reported at the Taralga project in southern NSW. 6 million tonnes maiden resource was declared at Guyra. Results from the Binjour Plateau in central QLD confirm that ABx has discovered a significant bauxite deposit including some bauxite of outstandingly high quality. Australian Bauxite Limited aspires to identify large bauxite resources in the Eastern Australian Bauxite Province which is emerging as one of the world's best bauxite provinces.
ABx has the potential to create significant bauxite developments in three states - Queensland, New South Wales and Tasmania. Its bauxite deposits are favourably located for direct shipping of bauxite to both local and export customers.
Australian Bauxite Limited