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Australia
Karara Mine

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 Location:
210 SEE from Geraldton, Western Australia, Australia

  Regional Office:
Level 8, London House 216 St Georges Terrace
Perth
Western Australia, Australia
6000
Phone  ...  Subscription required
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron (magnetite)
  • Iron (hematite)
Mining Method
  • Truck & Shovel / Loader
Processing
  • Flotation
  • Magnetic separation
Mine Life30 years (as of Jan 1, 2020)
No mine operations data has been publicly available since Gindalbie Metals Limited (‘GBG’) was removed from the Official List of ASX Limited on 24 July 2019, in accordance with Listing Rule 17.11, following implementation of the scheme of arrangement between GBG and its shareholders in connection with the acquisition of all the issued capital in GBG by Angang Group Hong Kong (Holdings) Limited.
Latest NewsKarara seeks 2050 expansion     March 24, 2022


Owners

Source: p. 6
CompanyInterestOwnership
Karara Mining Ltd. (operator) 100 % Direct
Ansteel Group Corporation Ltd. 100 % Indirect
Karara Mining Limited (KML) is wholly owned by Ansteel Group Corporation Ltd.

Deposit Type

  • Banded iron formation


Summary:

Mt Karara magnetite mineralisation is confined to a magnetite banded iron formation (BIF) lithological unit that occurs within a tightly folded and structurally disrupted northeast trending syncline. The Mt Karara syncline is characterised by a thick western limb dipping steeply to the east and a thinner and more structurally complex eastern limb that dips less steeply to the west, and it is the thick western limb that hosts most of the interpreted mineralisation. Where drilling has penetrated the base of the BIF, the syncline structure is interpreted to plunge steeply to the north. The drilling coverage has allowed the Mt Karara deposit to be modelled to a strike length of approximately 3km and the main mineralised zone has a width of approximately 500m. The BIF has been interpreted to extend vertically to depths of >700m below the surface.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Magnetite ore is mined from a large scale (12 m bench height) open pit mine in a traditional load and haul mining operation using conventional face shovels, large capacity (230 tonne) off-road haul trucks, a fleet of large diameter blast-hole drill rigs and a range of ancillary mobile mining equipment.

The project comprises a large, complex and fully integrated mining, processing and transport logistics operation designed to produce 8 Mtpa.


Crushing and Grinding
Crusher / Mill TypeModelSizePowerQuantity
High Pressure Grinding Rolls (HPGR) 2
Ball mill 4
Vertical mill / Tower

Summary:

Magnetite ore known as Run-of-Mine (ROM) material is direct dumped by haul trucks from the mine into the primary crusher. Primary and secondary crushers crush the ROM ore to a product size of <60 mm. The crushed ore is then transferred to the Coarse Ore Stockpile (COS), which has a holding capacity of up to 500,000 tonnes of material for downstream processing.

Ore material from the COS is reclaimed by conveyor into a parallel train of two High-Pressure Grinding Rolls (HPGR’s), which grind the ore to a size of 4 mm or smaller. This ore material from the HPGRs is pumped in a slurry to a stage one magnetic separation. A high magnetic field allows separation of non-magnetic material to tailings. Magnetic material remains as a concentrate and is transferred to the primary grinding plant.

The primary grinding plant of four ball mills grinds the ore in slurry into fine particle sizes of <50 µm before further magnetic separation to produce a concentrated magnetite ore stream, with elevated Iron (Fe) grades of ~58%.

The mining proposal is to allow for the addition of mobile crushing activities to supplement the existing crushing circuit. This addition is necessary to maintain existing production levels, operating concurrently with the current primary crusher. There will be no increase to approved throughput or current production levels. The mobile crusher will be sited adjacent to the current Crusher Ore Stockpile (COS).

The crushing process will involve the ore feed hauled directly either from the Karara pit or from the COS stockpile, using existing mining fleet, that is then transported to the mobile crushing circuit for the commencement of the process.

Ore will be fed into the mobile crushing circuit via a CAT 980M Loader. The proposed mobile crushing circuit consists of:
I. Metso LT120 Jaw Crusher x 1
II. Metso LT300HP Cone Crusher x 2
III. Metso ST2.8 Scalping Screen x 1
IV. Metso ST4.8 Screen x 1


Processing

  • Flotation
  • Magnetic separation

Flow Sheet: Subscription required

Summary:

Ore mined from the Karara pit is processed via the beneficiation processing plant, which produces approximately eight million tonnes of magnetite concentrate per annum.

Upgrading to final product specification occurs in the flotation circuit. Concentrate is filtered to achieve moisture levels <10% and a final, premium concentrate product with Fe grades of +65%. Product is then transferred by rail to Karara’s Export Terminal at the Port of Geraldton.

Tailings material generated in the ore treatment process is filtered for dry tails stacking where possible, reducing discharge of tailings to Karara’s wet tailings storage facility (TSF), or tailings dam. This enables Karara to reduce water usage and minimise the environmental impact and footprint of tailings material.

Recoveries & Grades:

CommodityParameter20182017201620152014
Iron (magnetite) Concentrate Grade, % 65.665.565.865.863.9

Production:

CommodityUnits201820172016201520142013
Iron (magnetite) kt 7,8128,0677,0935,8633,3171,106
All production numbers are expressed as concentrate.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202020192018201720162015
Annual mining capacity  ......  Subscription required
Annual production capacity  ......  Subscription required8 Mt of iron (magnetite) concentrate8 Mt of iron (magnetite) concentrate
Ore tonnes mined  ......  Subscription required20,558 kwmt19,772 kwmt17,313 kwmt13,480 kwmt
Subscription required - Subscription is required.

Reserves at June 30, 2013:

CategoryTonnage CommodityGrade
Probable 950.8 Mt Iron (magnetite) 36.2 %
Indicated 1,676 Mt Iron (magnetite) 36.1 %
Inferred 702 Mt Iron (magnetite) 35.3 %
Total Resource 2,378 Mt Iron (magnetite) 35.8 %


Heavy Mobile Equipment as of December 22, 2021:
HME TypeModelSizeQuantityStatusLeased or
Contractor
Shovel 600 t ....................... Subscription required Proposed Leased
Shovel ....................... Subscription required ....................... Subscription required Existing
Truck (haul) ....................... Subscription required 200 t Existing Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 6, 2021
....................... Subscription required ....................... Subscription required Subscription required Dec 6, 2021
....................... Subscription required ....................... Subscription required Subscription required Dec 6, 2021
....................... Subscription required ....................... Subscription required Subscription required Dec 6, 2021
....................... Subscription required ....................... Subscription required Subscription required Dec 6, 2021
....................... Subscription required ....................... Subscription required Subscription required Dec 6, 2021
....................... Subscription required ....................... Subscription required Subscription required Jan 28, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2013

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Annual Report 2016
Annual Report 2015
Annual Report 2014
Annual Report 2013
Press Release 2008
Subscription required - Subscription is required.

News:

NewsDate
Karara seeks 2050 expansion March 24, 2022
Terra Nova to supply new stacker to Karara Mining’s magnetite operation February 11, 2022
NRW cements Karara Mining services contract December 22, 2021
Metso Outotec trusted by Karara for tailings expansion July 14, 2021
NRW preferred for Karara mining services June 18, 2021
Ansteel moves closer to $25m Gindalbie acquisition June 27, 2019
Ansteel to acquire Gindalbie Metals in $25m deal March 12, 2019

Aerial view:

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