Lin, Hauxin2010-06-012010-06-0119912010-06-01http://hdl.handle.net/1828/2828We show that normal elements in simple AF-algebras with countably many extremal traces (such as UHF-algebras and matroid algebras) can be approximated by normal elements with finite spectra. Other AF-algebras are shown to have the same property.enTechnical Report