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Australia
Mt Marion Mine

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 Location:
35 km S from Kalgoorlie, Western Australia, Australia

  Address:
20 Walters Drive, Osborne Park
Perth
Western Australia, Australia
6017
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Fax+61-8-9329-3601
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Lithium
  • Spodumene
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life20 years (as of Jan 1, 2021)


Owners

Source: p. 35
CompanyInterestOwnership
Mineral Resources Ltd. (operator) 50 % Indirect
Jiangxi Ganfeng Lithium Co., Ltd. 50 % Indirect
The Mt Marion Lithium Project is operated by Mineral Resources Ltd. under a life-of-mine Mining Services contract and is a joint project between the Group (50%) and one of the world’s largest lithium producers, Jiangxi Ganfeng Lithium Co. Ltd. (Ganfeng) (50%).

Contractors

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Deposit Type

  • Pegmatite


Summary:

The Mt Marion lithium mineralisation is hosted within a number of sub-parallel, northeast to northwest trending pegmatite intrusive bodies which dip at between 10° and 30° to the west. Individual pegmatites vary in strike length from approximately 300 m to 1,500 m and average 15 m to 20 m in thickness, but vary locally from less than 2 m to up to 35 m thick. The pegmatites intrude the mafic volcanic host rocks of the surrounding greenstone belt.

To the southwest of Area 2W, large intervals of spodumene-bearing pegmatite intersected during the 2016 drilling are interpreted to be part of a sub-vertical, northeast striking feeder zone. The feeder zone is interpreted to be around 40 m to 80 m wide, extending approximately 400 m along strike and down to over 500 m below surface, and is open at depth.

The lithium occurs as 5 cm to 30 cm long greywhite spodumene crystals within medium grained pegmatites comprising primarily of quartz, feldspar, spodumene and muscovite. The spodumene crystals are broadly oriented orthogonal to the pegmatite contacts. Some zoning of the pegmatites parallel to the contacts is observed, with higher concentrations of spodumene occurring close to the upper contact.

Lithium mineralisation occurs as spodumene crystals which are hosted within quartz-feldspar-muscovite pegmatites.

The spodumene-bearing pegmatites were interpreted and wireframed in section based largely on the geological logging of pegmatite intersec ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Mt Marion lithium operation is located approximately 40 kilometres south-west of Kalgoorlie in the Goldfields region of Western Australia.

Ore is extracted via conventional truck and shovel method with preliminary drilling and blasting operations. Mining fleet includes 12 drill rigs, 5 excavators and 22 houl trucks. Final pit is designed of 310m depth with strip ratio of 10.8:1.

Mt Marion is producing lithium spodumene concentrate which is transported 350km to Port of Esperance by road trains.

Mining waste is considered to be non-acid forming (“NAF”) and formed waste dumps will conform to WA standards. Waste will be formed as dumps. In the case of fibre mitigation, MRL uses industry standard procedures.


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2022202120202019
Spodumene kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as concentrate. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Annual production capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required21,453 kwmt22,539 kwmt7,044 kwmt
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required2,817 kwmt2,923 kwmt1,460 kwmt
Annual processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
Subscription required - Subscription is required.

Reserves at June 30, 2022:
The Mt Marion Ore Reserve, using a 0.75% Li2O cut-off.
The Mineral Resources estimate is reported above a cut-off grade of 0.5% Li2O.

CategoryTonnage CommodityGrade
Proven 0.8 Mt Li2O 1.19 %
Probable 16.4 Mt Li2O 1.57 %
Proven & Probable 17.2 Mt Li2O 1.56 %
Indicated 21.4 Mt Li2O 1.54 %
Inferred 30 Mt Li2O 1.38 %
Total Resource 51.4 Mt Li2O 1.45 %

Financials:

Units20222021
Revenue M AUD  ......  Subscription required  ......  Subscription required
EBITDA M AUD  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required


Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment:
HME TypeModelQuantityStatusRef. Date
Backhoe ....................... Subscription required ....................... Subscription required Existing Oct 1, 2018
....................... Subscription required ....................... Subscription required Proposed Oct 10, 2022
Drill (blasthole) ....................... Subscription required Existing Oct 7, 2022
Excavator ....................... Subscription required Existing Oct 10, 2022
Truck (haul) ....................... Subscription required Existing Oct 10, 2022
....................... Subscription required ....................... Subscription required Proposed Oct 10, 2022
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 21, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 21, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2022

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Corporate Presentation 2022
Corporate Presentation 2022
Quarterly Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Year-end Mineral Reserves 2018
Year-end Mineral Reserves 2018
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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