NEW YORK ( Karvy Global) -- North American Palladium ( PAL), Cliffs Natural Resources ( CLF) and Stillwater Mining ( SWC) headed the gainers' list last week, while Great Northern Iron Ore Properties ( GNI), Alpha Natural Resources ( ANR) and Mag Silver ( MVG) were the top losers last week. North American Palladium surged around 18.9% last week, hitting 52-week highs on Friday. Meanwhile, Stillwater Mining gained around 8.8%. Both stocks benefited from the rally in platinum and palladium, spot prices of which rose 4.6% and 3.7% during the week, respectively. Cliffs Natural Resources touched 52-week highs, advancing around 9.2%. Cliffs acquired Canada-based Thompson Iron Mines for C$4.9 billion, in an all-cash deal last week. > > Bull or Bear? Vote in Our PollPatriot Coal ( PCX) hit 52-week highs at $26.48 on Thursday. The stock declined to $24.52, however, after FBR Capital cut its rating to "market perform." Similarly, International Coal ( ICO) scaled up to 52-week highs at $9.48 on Thursday, before ending the week at $9.02. Among other coal stocks, Westmoreland Coal ( WLB), Penn Virginia Resource Partners ( PVR) and Yanzhou Coal Mining ( YZC) gained around 6.9%, 2.8% and 2.7%, respectively. Meanwhile, Harsco ( HSC) advanced around 5.7%. On Friday, the company confirmed receiving two new industrial sector orders from the Netherlands for a total value of $9 million. ArcelorMittal ( MT), global steel giant, gained 3.6%. On Friday, ArcelorMittal said it has joined Nunavut to offer C$1.50 per share for Baffinland. U.S. Gold ( UXG) gained around 3.4%. During the week, the company announced that its new discovery at Limo Project in Nevada delivered significant results. Meanwhile, mining giants Vale ( VALE) and Rio Tinto ( RIO) advanced around 3.4% and 3.0%, respectively, attaining their respective 52-week highs on Wednesday. Other winners include Allegheny Technologies ( ATI), Haynes International ( HAYN) and BHP Billiton ( BHP), up 4.9%, 4.5% and 2.4%, respectively. Great Northern Iron Ore Properties headed the losers' list last week, plunging 26.2% on speculative selling with heavier-than-average-volume. Alpha Natural Resources followed, shedding 9.5% after the company raised its 2010 estimates for cost of coal sales. Silver stocks dominated the decliners' list as the white metal COMEX spot delivery declined 3.58% last week. Mag Silver, Compania de Minas Buenaventura ( BVN), Endeavour Silver ( EXK), Silver Wheaton ( SLW) and Pan American Silver ( PAAS) were down 7.1%, 6.8%, 5.8%, 5.4% and 4.7%, respectively. Among gold stocks, Goldcorp ( GG), IAMGOLD ( IAG), Royal Gold ( RGLD), Barrick Gold ( ABX) and Kinross Gold ( KGC) declined 5.3%, 4.4%, 4.4%, 4.1% and 4.1%, respectively, as the underlying metal dropped nearly 1.3% for COMEX spot delivery.