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Australia
Imperial/Majestic Mine (Mount Monger Operation)

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 Location:
45 SE from Kalgoorlie, Western Australia, Australia

  Regional Office:
PO Box 750
Kalgoorlie
Western Australia, Australia
6433
Phone  ...  Subscription required
Fax+61-8-9024-2013
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Filings & News

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Overview

StatusInactive / Suspended
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Processing
  • Gravity separation
  • Concentrate leach
  • Agitated tank (VAT) leaching
  • Carbon in pulp (CIP)
  • Elution
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)
Mining from the Majestic and Imperial open pits was completed during FY18.


Owners

 
CompanyInterestOwnership
Silver Lake Resources Ltd. 100 % Direct

Deposit Type

  • Breccia pipe / Stockwork


Summary:

The gold mineralisation at Majestic and Imperial deposits is hosted by a quartz diorite stock on the western side of the regional scale Yindarlgooda Dome. Gold zones are characterised by open breccias, quartz veins and zones of foliation associated with pyrite + chalcopyrite + pyrrhotite, overprinting silicasericite alteration. The highest grade gold-copper zones at Imperial are characterised by a micro breccia sulphide fracture network fill with semi-massive sulphides that almost completely overprints the silicasericite alteration, in discrete zones that are up to 5m true width.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Located 33km north north-west of the Randalls Mill.

Mining from the Majestic open pit commenced July 2016 and will continue until Q2 FY2018.

Ore production from the Imperial open pit is scheduled from Q2 FY2018.


Crushing and Grinding


Processing

  • Gravity separation
  • Concentrate leach
  • Agitated tank (VAT) leaching
  • Carbon in pulp (CIP)
  • Elution
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)

Source: Subscription required

Summary:

All ore from the Mount Monger Operation is processed through the 1.3 mtpa Randalls facility, located 65 km south east of Kalgoorlie and is 15 km from the Daisy Complex.

Gold recovery consists of both a gravity circuit containing two gravity concentrators an intensive cyanidation unit and hybrid CIP circuit comprising two leach tanks and six adsorption vessels. Gold is stripped from the loaded using a pressure Zadra type elution circuit consisting of two elution columns and the gold is subsequently recovered from the cathodes of the gravity and electrowinning cells.

Recoveries & Grades:

CommodityParameter20182017
Gold Head Grade, g/t 2.72.2

Production:

CommodityUnits20182017
Gold oz  ......  Subscription required54,606
All production numbers are expressed as metal in ore.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20182017
Ore tonnes mined  ......  Subscription required  ......  Subscription required
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Reserves at June 30, 2019:

CategoryTonnage CommodityGradeContained Metal
Probable 169 kt Gold 3.8 g/t 21 koz
Indicated 2,177 kt Gold 2.7 g/t 186 koz
Inferred 1,006 kt Gold 2.2 g/t 72 koz
Total Resource 3,183 kt Gold 2.5 g/t 258 koz


Heavy Mobile Equipment:

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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
Annual Report 2017
Annual Report 2015
Quarterly Report 2015
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Aerial view:

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