<p style="text-align:start;" size="1" _root="[object Object]" __ownerid="undefined" __hash="undefined" __altered="false">Nickel prices plunged 12% Friday to $36,915 per metric ton on the London Metal Exchange (LME), hitting the lower daily price limit. </p><p style="text-align:start;" size="1" _root="[object Object]" __ownerid="undefined" __hash="undefined" __altered="false"></p>