NEW YORK (AP) â¿¿ Shares of some top silver companies were mixed at the close of trading:

Hecla Mining Co. rose $.02 or .3 percent, to $5.94.

Pan American Silver Corp. fell $.18 or .8 percent, to $21.43.

Silver Standard Resources Inc. rose $.02 or .1 percent, to $14.69.

Silver Wheaton rose $.59 or 1.5 percent, to $40.12.

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