Project Number: 109

Deposit Number: 88

Location: Mandena, Madagascar

Resource (*10^4 t, REO, Total): 25.3

Grade (wt. %): 1.3

La2O3: 21.2

Ce2O3: 48.79

Pr6O11: 5.49

Nd2O3: 19

Sm2O3: 2.56

Eu2O3: 0.01

Gd2O3: 1.35

Tb4O7: 0.1

Dy2O3: 0.29

Ho2O3: 0.02

Er2O3: 0.06

Tm2O3: 0.01

Yb2O3: 0.08

Lu2O3: 0.01

Y2O3: 1.02

HREE Percentage: 2.94

REE Pattern Reference: Hao et al., 2018, High-level natural radionuclides from the Mandena deposit, South Madagascar

Project and Status Reference: Van Hao, D., Dinh, C. N., Jodłowski, P., & Kovacs, T. (2019). High-level natural radionuclides from the Mandena deposit, South Madagascar. Journal of Radioanalytical and Nuclear Chemistry, 319(3), 1331-1338.；https://www.riotinto.com/operations/madagascar/qit-madagascar-minerals

Deposit Type Reference: Van Hao, D., Dinh, C. N., Jodłowski, P., & Kovacs, T. (2019). High-level natural radionuclides from the Mandena deposit, South Madagascar. Journal of Radioanalytical and Nuclear Chemistry, 319(3), 1331-1338.

Resource and Grade Reference: Van Hao, D., Dinh, C. N., Jodłowski, P., & Kovacs, T. (2019). High-level natural radionuclides from the Mandena deposit, South Madagascar. Journal of Radioanalytical and Nuclear Chemistry, 319(3), 1331-1338.