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 -0.37%) and Silver Wheaton (WPM 0.15%) near the top of the charts in 2012 -- and if that momentum will continue throughout 2013.