858
H. Wang et al.
Fig. 7 Pyrite
Fig. 8 Pyrite and sphalerite
Occurrence State of Iron in Mineral Samples
The iron content in the ore sample is 2.44%. The iron is mainly present in the
sphalerite in the form of isomorphism. The distribution rate of iron in sphalerite
is 45.72%. Secondly, the iron exists in the form of pyrite and chalcopyrite with the
distribution rate of 27.68% and 23.16%, respectively. 1.95% of iron exists in the form
of silicates such as chlorite and muscovite. In addition, 1.49% of iron is present in