The Iron Sulfides Crystal Growth from the Halide Melts

This approach is based on the method of crystal growing from solution melts. This approach is based on the crystallization or recrystallization of iron sulfides from iron sulfide solutions in iron dihalide melts under fixed sulfur vapor pressure in the closed system in non-isothermal (two-temperature) conditions.

It allows to regulate the composition and structure of the resulting iron sulphide. In particular, at a relatively low pressure (<0.4 atm), pyrrhotite with a trigonal 3T structure is synthesized. At higher pressure pyrite β-FeS2 is grown.