


Characterization of refractory behaviour of complex …
The chemical and mineralogical analysis of the ore sample indicated that the ore consisted of predominantly quartz/clay (52.2% SiO2) and barite (17.1% Ba), and to a less extent, sulphide minerals such as pyrite, antimonite, sphalerite, fahlerz (e.g. tetrahedrite) and zinkenite (Table 2 and Fig.2).