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Evolution Ownership
100%

Location
500km north-west of Brisbane, Queensland, Australia
Located on the traditional lands of the Wulli Wulli People

Local Communities
Cracow, Theodore

Year commenced operations
2004

History

  • 1932 to 1992: 850koz gold produced
  • 1996: Sedimentary Holdings Limited enter into an (30/70) exploration joint venture with Newcrest
  • Exploration over 5 years delineated the Royal and Crown deposits (2.4Mt Inferred Mineral Resource at 10.1g/t gold for 790koz gold)
  • 2002: Joint venture participants approved development of the underground mine and refurbishment and upgrading of the existing treatment plant
  • Sep 2003: Cracow Mining JV Agreement executed and development commenced
  • Dec 2003: Mine development commenced
  • Nov 2004: First gold production
  • 2006: AuSelect take over Sedimentary Holdings
  • 2007: AuSelect merge with Lion Selection Group to form Lion Selection Limited
  • 2009: Catalpa Resources Ltd merges with Lion Selection Limited
  • Nov 2011: EVN acquired 100% of Cracow via Catalpa Resources and Conquest Mining merging and the concurrent acquisition of Newcrest Mining’s Cracow and Mt Rawdon gold mines

Style of mineralisation
Steeply dipping, low-sulphidation epithermal fissure quartz veins

Contained metals
Gold, silver

Measured, Indicated and Inferred Resources (at 31 Dec 2015)
2.42Mt @ 6.48g/t gold for 504koz gold

Ore Reserves (as at 31 Dec 2015)
1.06Mt @ 5.59g/t gold for 190koz gold

Mining Method
Underground-open stoping

Gold Production
FY2010A 102,760 ounces
FY2011A 101,723 ounces
FY2012A 102,565 ounces
FY2013A 102,560 ounces
FY2014A   95,064 ounces
FY2015A   93,064 ounces
FY2016A   90,626 ounces

Processing Method
Conventional crush-grind-CIP to produce gold-silver dore

Nominal treatment rate
550ktpa

Geology
Gold mineralisation is hosted in steeply dipping low sulphidation epithermal veins. These veins are found as discrete lodes (often with associated stockwork veining), composed of varying percentages of quartz, carbonate and adularia. Mineralisation has been defined in ten separate deposits (Royal, Crown, Phoenix, Sovereign, Klondyke North, Kilkenny, Tipperary, Coronation, Empire and Roses Pride Lodes.

Mining of the Kilkenny, Roses Pride, and Empire Lodes is currently being undertaken, which average between 2 – 5m in width.

Mining
The underground orebodies are accessed from a decline based on modified avoca and long hole open stoping mining methods with downhole sub-level benching with waste backfilling. Underground development was accelerated during FY13, providing the operation with greater production flexibility in FY14. With a focus on lowering costs, Cracow successfully transitioned to owner mining on 1 July 2013. This change allows more operational flexibility and a stronger focus on cost management.

Processing
Ore is free milling and is treated on site by conventional crush-grind-CIP processing to produce gold-silver-dorè. A total of 511kt was processed at an average grade of 5.92g/t gold at a recovery rate of 93.1% for FY16.

Fact Sheet
Cracow fact sheet – updated December 2016