Table 2: Characterization of the ore into size and magnetic susceptibility classes.

% in the magnetic classes Magnetic susceptibility (distance (mm) to magnet
Mesh	Ore % retained	< 25	25-35	35-45	45-60	60-75	75	Species	%w/w		Mineral	%w/w
+ 6	30.000	3.34	0.89	1.14	16.94	77.30	0.39	TiO2	8.59		Ilmerite	11.83
-6 + 8	16.76	6.54	1.26	1.36	36.70	53.99	0.14	FeTot	13.98		Plagioclase	47.41
-8 + 14	23.48	10.80		1.43	45.63	40.45	0.39	Al2O3	22.68		Feldspath	3.28
-14 + 28	14.64	13.85	0.82	0.73	15.28	67.37	1.95	CaO	4.96		Iron-Oxides	3.48
-28 + 65	10.78	19.55	0.54	0.44	1.14	69.72	8.34	Mgo	7.41		Fe-Mg silicates	13.83
-65	4.34	20.86	0.63	0.70	1.84	28.31	47.67	SiO2	32.74		Chlorite	0.10
								K2O	0.55		Fe-Mg aluminates	20.06
								Na2O	2.01