Element

Y

La

Ce

Pr

Nd

Sm

Eu

Gd

Tb

Dy

Ho

Er

Tm

Yb

Lu

ppm

217

20.3

79.8

10.4

28.5

10.4

0.17

10.3

3.5

31.0

7.8

32.4

7.1

56.4

8.8