A motor problem has forced the closure of the No. 3 semi-autogenous grinding mill at the Collahuasi open-pit copper mine in northern Chile.
Falco figures the shutdown will cut its share of copper from the operation by about 9,000 tonnes, to 211,000 tonnes, in 2005. Last year the company took home 205,116 tonnes of copper concentrates and cathode.
Collahuasi comprises two high-altitude porphyry copper deposits, Ujina and Rosario, close to the border with Bolivia. At the end of 2004, proven reserves amounted to 310.5 million tonnes grading 1.1% copper; another 1.5 billion tonnes of probable reserves grade 0.9% copper. An additional 480 million tonnes of measured and indicated resources average 0.6% copper.
London-based
In other news, Falconbridge has swapped its 97% stake in Kenbridge Nickel Mines for 1.5 million units of
Under the deal, Blackstone inherits the Kenbridge property, 70 km southeast of Kenora, Ont., along with 50 patented mining claims in the area.
The Kenbridge property is home to a partially developed nickel-copper deposit, which remains open at depth and along strike. A $600,000 program consisting of 2,000 metres of diamond drilling plus geophysical surveys is under way.
Limited work in the 1950s by Falconbridge resulted in a mineral resource of about 2.7 million tonnes grading 1.05% nickel and 0.5% copper to a depth of around 600 metres. Another 594,000 tonnes of inferred resource below 600 metres were estimated to have a grade of 1.6% nickel and 0.9% copper. The estimates do not conform to the standards of National Instrument 43-101.
The property has not been explored for nickel since Falco ceased work in 1958.
The news from Collahuasi sent shares in Falco down $1.09, or 2.6%, to $41.01 in late afternoon trading in Toronto on April 14; Blackstone was of 9.5, or nearly 20%, at 40 in Vancouver.
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