Table 1: Operating Mines
Table 1. Australia's Ore Reserves and Mineral Resources of selected commodities at operating mines in 2018
This table provides short-term (Ore Reserves) and long-term (Mineral Resources) views of Australia's minerals inventory at operating mines. For further information about Australia's minerals inventory see Table 2 (Australia's Ore Reserves) and Table 3 (Australia's Identified Mineral Resources and World Figures). See Table 5 (World Rankings) for a global outlook on Australia's production and resources and see Table 6 (Reserve and Resource Life) for an indication of Australia's potential to continue supplying minerals.
|Commodity||Unit||No. of Operating Mines1||Ore Reserves2||Measured and Indicated Mineral Resources3||Inferred Mineral Resources4||Mine Production5||Reserve Life (years)||Resource Life 1 (years)||Resource Life 2 (years)|
|Black Coal||Mt||95||12 592||26 0307||13 1417||5788||22||45||68|
|Iron Ore||Mt||34||11 610||25 538||40 111||899||13||28||73|
t = tonne; kt = kilotonnes (1000 t); Mt = million tonnes (1 000 000 t); Mc = million carats (1 000 000 carats).
Where an element symbol follows the unit it refers to contained metal content.
Reserve Life = Ore Reserves ÷ Production.
Resource Life 1 = Measured and Indicated Resources ÷ Production.
Resource Life 2 = Measured, Indicated and Inferred Resources ÷ Production.
1. The number of operating mines counts individual mines that operated during 2018 and thus contributed to production. Some of these mines may belong to larger, multi-mine operations and some may have closed during or since 2018.
2. The majority of Australian Ore Reserves and Mineral Resources are reported in compliance with the JORC Code, however there are a number of companies that report to foreign stock exchanges using other reporting codes, which are largely equivalent. In addition, Geoscience Australia may hold confidential information for some commodities. NB: Not all operating mines report Ore Reserves. Ore Reserves are as at 31 December 2018.
3. Measured and Indicated Mineral Resources are inclusive of the Ore Reserves. NB: Not all operating mines report Mineral Resources. Mineral Resources are as at 31 December 2018.
4. Inferred Mineral Resources are as at 31 December 2018. NB: Not all operating mines report Mineral Resources.
5. Mining production from Resources and Energy Quarterly, June 2019, published by the Office of the Chief Economist, Department of Industry, Innovation and Science unless otherwise stated. Production data often have a higher level of certainty than reserve and resource estimates and, thus, may be presented with more significant figures.
6. Antimony production from company reports (Mandalay Resources Ltd).
7. Measured, Indicated and Inferred Mineral Resources for black coal are presented on a recoverable basis (these are Geoscience Australia estimates unless provided by the company).
8. Mine production refers to raw coal.
9. Lithium production data from Department of Mines, Industry Regulation and Safety, Western Australian Government, 2018–2019 Major commodities resources file.
10. Australian manganese production from company reports and total reported production from Department of Mines, Industry Regulation and Safety, Western Australian Government, 2018–2019 Major commodities resources file.
11. Mineral sands production from company reports.
12. Rare earths comprise rare earth oxides (REO) and yttrium oxide (Y2O3).
13. Rare earths production is based on Western Australian production of concentrates from Mount Weld (18 556 t) and from trial mining and processing at Browns Range (2.6 t).
14. Major silver producing mines only; many gold and copper mines also produce silver as a by-product but these are not counted here.
15. The Office of the Chief Economist reports tin production of 6.9 kt in 2018 but Renison, Australia’s only tin mine, reports 6.6 kt. Additional unreported production is as by-product from other operations such as Greenbushes.