Overview
Stage | Production |
Mine Type | Tailings |
Commodities |
- REE
- Ilmenite
- Zircon
- Rutile
- Monazite
- Xenotime
|
Mining Method |
|
Production Start | ...  |
Mine Life | 2033 |
The rare earth bearing mineral monazite is a co-product of Iluka’s mineral sands. Since the 1990’s Iluka has strategically stockpiled the monazite produced at its Narngulu Mineral Separation Plant, at its operations at Eneabba, Western Australia. Iluka commissioned a concentrator plant at Eneabba to further process the stockpiled material. This will separate the monazite (and additional zircon), producing a ~90% monazite concentrate material that will provide a direct feed to Iluka’s rare earths refinery.
Following the agreement of a strategic partnership with the Australian Government, Iluka has undertaken a substantial diversification into rare earths. In April 2022, the company approved the final investment decision to develop Australia’s first fully integrated rare earths refinery at Eneabba in Western Australia. Earthworks commenced in November 2022. Commissioning is scheduled for 2025. |
Source:
p. 126
The Eneabba Mineral Separation Plant (MSP) By-Product Mineral Resource is located within mining lease M267SA which is held by Iluka Midwest Limited, a wholly owned subsidiary of Iluka Resources.
Contractors
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Summary:
The Eneabba Mineral Separation Plant (MSP) By-Product Mineral Resource is located within the Perth Basin however the material is made up of mineral sands by-product from Iluka’s Narngulu MSP. Being a minerals sands stockpile there is no geological structure. The stockpile physically presents as a fine grained sand and is approximately 300m in length, 150 wide and varies from 1 to 15m in thickness. The fine grained, dark brown to black material is easily distinguishable from the yellow clayey sand it resides on.
A half to one meter cap of orange brown, gravelly, clayey sand covers the resource. A mixed zone of the by-product and capping immediately below the capping with high HM grade in combination with elevated slimes and oversize is recognised, being defined in the resource estimation and reporting.
The tailings material comprises a mixture of ilmenite, staurolite, aluminosilicates, zircon and the rare earth bearing mineral ‘monazite’, a naturally-occurring radioactive material (NORM).
Summary:
The mining will be campaigned and require a Front End Loader (FEL) to move the by-product from the stockpile and feed into a mobile screening plant. A bulldozer will be required for short periods of time to push the top of the by-product stockpile down to enable safe access by the FEL. Once dry screened, the material will be loaded into dump trucks and dumped near the Wet Screening Plant (WSP) for processing.
Mining of the thin layer of waste capping material covering the stockpile will be conducted using a truck and shovel fleet.
Grade control will occur during the mining process, with daily sampling to analyse materials for blending. Blending and grade control will occur during the mobile screening process within the pit. The heavy mineral sand is easily distinguishable from the underlying yellow clayey sand and as such minimal dilution or ore loss is expected.
Flow Sheet:
Summary:

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Production:
Commodity | Product | Units | 2021 | 2020 | Avg. Annual (Projected) |
Total Rare Earth Oxides
|
Mineral in concentrate
|
kt
| | | 12 |
Nd2O3+Pr6O11
|
Mineral in concentrate
|
kt
| | | ......  |
Heavy Minerals
|
Concentrate
|
kt
| ......  | ......  | ......  |
Zircon
|
Mineral in concentrate
|
kt
| | | ......  |
Monazite
|
Mineral in concentrate
|
kt
| | | ......  |
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Reserves at December 31, 2022:
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven & Probable
|
0.96 Mt
|
Heavy Minerals
|
84.1 %
|
0.81 Mt
|
Proven & Probable
|
0.81 Mt
|
Ilmenite
|
34 %
|
|
Proven & Probable
|
0.81 Mt
|
Zircon
|
28 %
|
|
Proven & Probable
|
0.81 Mt
|
Monazite + Xenotime
|
19.2 %
|
|
Measured
|
255 Mt
|
Heavy Minerals
|
5.3 %
|
13.4 Mt
|
Measured
|
13.4 Mt
|
Ilmenite
|
47 %
|
|
Measured
|
13.4 Mt
|
Zircon
|
13 %
|
|
Measured
|
13.4 Mt
|
Rutile
|
7 %
|
|
Measured
|
13.4 Mt
|
Monazite + Xenotime
|
1.6 %
|
|
Indicated
|
178 Mt
|
Heavy Minerals
|
5.4 %
|
9.6 Mt
|
Indicated
|
9.6 Mt
|
Ilmenite
|
44 %
|
|
Indicated
|
9.6 Mt
|
Zircon
|
11 %
|
|
Indicated
|
9.6 Mt
|
Rutile
|
7 %
|
|
Indicated
|
9.6 Mt
|
Monazite + Xenotime
|
0.9 %
|
|
Inferred
|
93 Mt
|
Heavy Minerals
|
5.3 %
|
4.9 Mt
|
Inferred
|
4.9 Mt
|
Ilmenite
|
45 %
|
|
Inferred
|
4.9 Mt
|
Zircon
|
10 %
|
|
Inferred
|
4.9 Mt
|
Rutile
|
7 %
|
|
Inferred
|
4.9 Mt
|
Monazite + Xenotime
|
0.6 %
|
|
Total Resource
|
526 Mt
|
Heavy Minerals
|
5.3 %
|
27.9 Mt
|
Total Resource
|
27.9 Mt
|
Ilmenite
|
45 %
|
|
Total Resource
|
27.9 Mt
|
Zircon
|
12 %
|
|
Total Resource
|
27.9 Mt
|
Rutile
|
7 %
|
|
Total Resource
|
27.9 Mt
|
Monazite + Xenotime
|
1.2 %
|
|
Corporate Filings & Presentations:
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