In this study,chemical and mineral compositions of pegmatite-type potash feldspar from Yiyang and Nanzhao area,Henan Province,China were analyzed systematically for their characteristics and Fe occurrence.The results show that K2O content of pegmatite in two areas is higher than 7%,and the content of iron oxide is lower than 1%.The ore grade of Nanzhao area is obviously higher than that of Yiyang area.Fe existing in pegmatite from two areas has two forms as oxide type in limonite and isomorphism type substi...