Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 7 years (as of Jan 1, 2022) |
In 2022, ArcelorMittal Prijedor acquired additional mining and land rights and started iron ore mining at Ljubija Mine. Product from Ljubija mine is mixed with the product from Omarska mine and is supplied to ArcelorMittal Zenica steel plant. |
Source:
p. 112,116,131
The Omarska mine is a production stage surface iron ore mine in Bosnia and Herzegovina, operated by ArcelorMittal Prijedor.
The mine is a joint venture in which ArcelorMittal owns 51% and the other 49% is owned by the local iron ore mine Ljubija.
Contractors
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Summary:
The Omarska deposit was originally comprised out of three ore bodies: Jezero, Buvac and a small ore body known as Mamuze. Ore reserves from Jezero and Mamuze have already been fully excavated. Since 2011, only the Buvac pit is in operation. It is formed within a carboniferous clastic and carbonate sediments. The genesis of this deposit is attributed to hydrothermal replacement and syn-sedimentary processes. The ore body is mainly composed of limonite-goethite mineralization, which was formed during weathering and oxidization of the primary siderite bodies.
The Buvac deposit at Omarska mine is located within Carboniferous clastic (shale and sandstones) and carbonate (limestone, dolomite, and ankerite) sequences, with massive siderite-limonite mineralization forming an integral part of the formation. Iron ore from the Buvac deposit is predominantly limonite-goethite with associated quartz, carbonates, and silicates of the illite type. The limonite-goethite mineralization was formed during the oxidization of the upper parts of the primary siderite bodies.
The ore body is asymmetrical, lens-shape and elongated in a northeast - southwest direction, dipping at about 8° toward the north-east from the surface to a depth of 210 meters. The deposit is approximately 1.5 kilometer long and 1.0 kilometer wide.
The Ljubija deposit is located within Carboniferous and Permian-Triassic formation rocks which are partly covered by thin Quaternary rocks. The ore within these formations is pri ........
Summary:
The ore is excavated from the Omarska and Ljubija deposits by traditional truck and shovel open pit mining methods.
The Omarska mine is a production stage surface iron ore mine in Bosnia and Herzegovina. After a primary stage of crushing within the pit, the ore is transported to a processing plant via a conveyor.
Source:
Summary:
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Production:
| Commodity | Units | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|
Iron Ore
|
Mt
| ...... | ...... | ...... | ...... | 1.4 | 1.6 | 1.8 |
All production numbers are expressed as concentrate & lump.
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Operational Metrics:
| Metrics | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|
Ore tonnes mined
| ...... | ...... | 1.9 Mt | 1.9 Mt | 1.9 Mt | 2.2 Mt |
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Reserves at December 31, 2022:
Mineral reserve for ArcelorMittal Prijedor is estimated based on a price of $39.9 per tonne of product calculated based on assumptions of a non-marketable material supplied to its integrated steel plant, at 32% Fe cut-off grade and mass recovery of 75%
Mineral resources for ArcelorMittal Prijedor are estimated based on assumptions of a non-marketable material supplied to its integrated steel plant, at 30% Fe cut-off grade and mass recovery of 75%.
| Category | Tonnage | Commodity | Grade |
|
Proven
|
2 Mt
|
Iron
|
45.8 %
|
|
Probable
|
11.8 Mt
|
Iron
|
41.5 %
|
|
Proven & Probable
|
13.8 Mt
|
Iron
|
42.1 %
|
|
Indicated
|
7.8 Mt
|
Iron
|
30.8 %
|
|
Inferred
|
2 Mt
|
Iron
|
31.8 %
|
| Type | Material | Diameter | Length | Description |
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