NEW YORK (AP) â¿¿ Shares of some top silver companies are mixed at 10 a.m.:

Hecla Mining Co. rose $.02 or .3 percent, to $6.64.

Pan American Silver Corp. fell $.10 or .5 percent, to $21.70.

Silver Standard Resources Inc. fell $.02 or .1 percent, to $15.37.

Silver Wheaton fell $.30 or .8 percent, to $39.59.

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