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Australia
Spotted Quoll Mine (Forrestania Operation)

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 Location:
362 km E from Perth, Western Australia, Australia

  Regional Office:
Level 2, 2 Kings Park Road
PO BOX 1891
West Perth
Western Australia, Australia
6005
Phone  ...  Subscription required
Fax+61-8-9486-7866
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Nickel
Mining Method
  • Longhole open stoping
  • Paste backfill
Processing
  • Bacterial leaching
  • Flotation
Mine Life4 years (as of Jan 1, 2021)
Spotted Quoll mine is one of the highest grade nickel operation in the world.


Owners

Source: p. 8,91
CompanyInterestOwnership
Western Areas Ltd. 100 % Indirect
The Company owns a 100% interest in the Forrestania Nickel Operation.

Deposit Type

  • VMS


Summary:

The FNO lies within the Forrestania Greenstone Belt, which is part of the Southern Cross Province of the Yilgarn Craton in Western Australia. The main deposit type is the komatiite hosted, disseminated to massive Nickel sulphide deposits, which include the Flying Fox and Spotted Quoll deposits which are currently being mined. The mineralisation occurs in association with the basal section of high MgO cumulate ultramafic rocks.

The greenstone succession in the FNO district also hosts a number of orogenic lode gold deposits of which Bounty Gold Mine is the biggest example. Some exploration for this style of deposit is undertaken by Western areas from time to time in the FNO tenements.

The Spotted Quoll Nickel sulphide deposit is located at the Forrestania Nickel Operations, 400 km southeast of Perth. Spotted Quoll is located wholly within Mining Lease M77/583. The deposit is hosted within a sequence of sedimentary, ultramafic and mafic rocks within the Western Ultramafic Belt.

The sulphide mineralisation consists of massive to matrix sulphides located in a possible shear zone in metasedimentary rocks overlain by a package of ultramafic and mafic rocks. The deposit belongs to the Archean komatiite hosted nickel type.


Mining Methods

  • Longhole open stoping
  • Paste backfill


Summary:

Spotted Quoll has high nickel grades also making it one of the world’s highest-grade nickel mines.

The Spotted Quoll orebody is open at depth with the mine currently planned to just over 1km below the surface. The primary stoping method is a ‘top-down’ mining method using long-hole open stoping with paste fill. The narrower and shallower areas are mined using top-down narrow vein techniques. Currently Spotted Quoll has a mine life exceeding six years, based on current reserves.


Crushing and Grinding
Crusher / Mill TypeModelSizePowerQuantity
Ball mill 1


Processing

  • Bacterial leaching
  • Flotation

Source: Subscription required

Summary:

The CBC treats the raw nickel and produces a consistent nickel concentrate product grading approximately 14% nickel. The concentrate produced from the Forrestania project is characterised by low impurities such as magnesium which makes it more desirable to smelters.

The concentrator consists of a three-stage crushing circuit, followed by a single closed-circuit ball mill and a system of flotation tanks and thickening/filtration system.

The recovery rates for Cosmic Boy currently average between 85% and 90%. The recovery rates refer to the percentage amount of nickel recovered from the raw ore during processing.

At CBC a Mill Recovery Enhancement Project (MREP) has recently been commissioned. The MREP incorporates the use of the Company’s BioHeap™ technology to recover nickel from the tailings waste stream. The nickel recovered is then converted into a high-grade nickel sulphide product which can either be mixed with the CBC floatation concentrate or s ........

Recoveries & Grades:

CommodityParameter2020201920182017
Nickel Head Grade, %  ......  Subscription required  ......  Subscription required4.24.4

Production:

CommodityUnits2020201920182017
Nickel t  ......  Subscription required  ......  Subscription required14,38815,510
All production numbers are expressed as metal in ore.
Subscription required - Subscription is required.

Operational Metrics:

Metrics2020201920182017
Ore tonnes mined  ......  Subscription required324,395 t346,455 t354,659 t
Subscription required - Subscription is required.

Reserves at June 30, 2020:

CategoryTonnage CommodityGradeContained Metal
Probable 1,225,000 t Nickel 4 % 49,600 t
Indicated 943,872 t Nickel 6.3 % 59,190 t
Inferred 147,724 t Nickel 4.1 % 6,041 t
Total Resource 1,091,596 t Nickel 6 % 65,231 t


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 24, 2021
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Year-end Mineral Reserves 2013
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Aerial view:

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