BUZZ-Gold and silver miners: Metal prices drop to 4-year low
** Gold and silver miners' U.S.-listed shares down 4-15 pct
** Gold and silver prices slumped to their lowest since 2010 as dollar and stocks soared following new round of quantitative easing by Bank of Japan and U.S. data showing robust economy
** Spot gold price down 3 pct at $1,161.25 an ounce, while spot silver down nearly 3 pct to $15.94 an ounce
** Barrick Gold Corp down 3.7 pct at $11.83, Kinross Gold Corp down 14.7 pct at $2.12, AuRico Gold Inc down 10 pct at $3.10, Seabridge Gold Inc down 5.8 pct at $6.34, Pretium Resources Inc down 11 pct at $4.20
** Eldorado Gold Corp down 5.6 pct at $5.72, Yamana Gold Inc down 9.6 pct at $4.03, Endeavour Silver Corp down 5.1 pct at $2.99
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