As we close out 2012, energy and materials analyst Taylor Muckerman looks back on some of the top large-capitalization materials stocks that performed admirably for their shareholders. In this installment, he covers Nos. 10 and 9. Watch the video below to find out what had Southern Copper (SCCO 0.84%) and Silver Wheaton (WPM 2.77%) near the top of the charts in 2012 -- and if that momentum will continue throughout 2013.