Zinc ores & concentrates

Grade 1:

Zn 59%min, Cu 0.8%max,  Pb 1.0%max,  Fe 6%max,  AS 0.20%max,  SiO2   3.0%max, F 0.2%max

Grade 2:

 Zn57%min, Cu 0.8%max , Pb 1.0%max , Fe 6%max , AS 0.20%max , SiO2   3.5%max , F 0.2 %max

Grade 3:

Zn 55%min, Cu 0.8%max , Pb 1.0%max , Fe 6%max , AS 0.30%max , SiO2   4.0%max , F 0.2 %max