RE-impurities(ppm)

Non-RE Impurities(ppm)

Y2O3                5.0

La2O3                   /

CeO                   /

Pr6O11                 /

Nd2O3                /

Sm2O3                  /

Eu2O3                   /

Gd2O3                   /

Tb4O7                   /

Dy2O3                   /

Ho2O3              5.0

Er2O3              5.0

Tm2O3              207.0

Lu2O3              667.0

Fe2O3                      1.4

Cl-                  423

CaO                 23

SiO2               10

L.O.I            ﹤1.0%

TREO              99.3%

Yb2O3/REO