Wustite and native iron have been first discovered from podiform chromitite ore bodies in the ophiolite at Luobusa, eastern part of the Yarlung Zangbo River, about 200 km southeast of Lhasa. The grains of native iron are in globular form rimmed by wustite. The two minerals have been analyzed by the X-ray diffraction and energy dispersion spectrometry methods. The space group of the native iron is Fm3m, and that of wustite is Fm3m too, with a = 0. 28663 nm and 0. 43070 nm respectively. Based on high-pressure and high-temperature experimental data, this assemblage was formed in the lower mantle as a result of the reaction between the Earth's outer core and lower mantle, and then brought up to the upper mantle by the plume.