Table 1.

A correct version of the original Table 1.

Element	Feed (wt.%)	Lead concentrate (wt.%)	Zinc concentrate (wt.%)	Tailing (wt.%)
SiO2	48.73	41.50	32.68	48.85
CaO	7.82	5.54	4.91	7.45
Fe2O3	4.41	4.93	4.79	4.56
K2O	2.28	2.29	1.57	2.13
MgO	5.55	4.04	3.51	5.33
Al2O3	7.02	4.12	3.98	7.91
Na2O	0.49	0.31	0.30	0.69
MnO	0.28	0.21	0.18	0.27
Ba	0.41	0.30	0.25	0.36
S	2.50	4.26	13.73	1.06
Pb	0.93	11.22	–	–
Zn	2.80	3.00	25.37	–