Table 1: Chemical composition of the laterite ore sample.

Constituent Wt.% Constituent Wt.%
RE2O3 1.92 K2O 0.98
Fe2O3 22.50 SiO2 21.90
MnO2 12.60 Al2O3 10.40
CaO 4.20 P2O5 2.80
MgO 3.50 H2O- 3.30
ThO2 20 ppm H2O+ 5.50
U3O8 230 ppm LOI 7.40
Na2O 2.39 Total 99.80

RE2O3: Rare earth oxides.