Misima Gold and Silver Mine, Papua New Guinea
Key Data:
Producer of
Gold and silver
Location
Misima Island, Papua New Guinea
Ownership
Placer Dome Inc (80%), Orogen Minerals Ltd (PNG government) (20%)
Geology type
Epithermal gold and silver in schists, porphyries and greenstones
Mineral type
Disseminated Au and Ag
Reserve base
Stockpile due for depletion in 2004
Annual production
3,360kg Au and 15,342kg Ag (2003)
Mining method
Residual stockpile processing only
Processing method
Jaw and cone crushers, SAG mill, cyclones, CIP leaching
Employment
650
Key Equipment:
Open pit
Caterpillar 992C and 988B wheel loaders
Caterpillar 785 haul trucks
Caterpillar 773B water truck
Caterpillar 950B tyre manipulator
Caterpillar 16G road graders
Tamrock Driltech D40K blasthole drills
Concentrator
Fuller Traylor SAG mill
Fuller Traylor ball mill
Haywood Gordon agitation tanks
Enviroclear high-capacity thickeners
