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Boliden Zinc, Copper, Gold and Silver Mine

Producer of

Zinc, copper, gold and silver

Location

Vancouver Island, BC, Canada

Ownership

Breakwater Resources Ltd (100%)

Geology type

Volcanogenic massive sulphides

Mineral type

Polymetallic sulphides

Reserve base

6Mt grading 6.7% zinc, 1.1% copper, 1.3g/t gold and 46g/t silver

Annual production

48,084t Zn, 7,640t Cu, 1.17Moz Ag and 31,750oz Au (2005)

Mining method

Underground sub-level and drift-and-fill stoping

Processing method

Crushing, grinding, gravity concentration and column flotation to produce sulphide concentrates

Employment

440

Concentrator

Knelson gravity concentrator
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