Multi Element REE-glass (4% each)
La, Sm, Gd, Yb
wdx 
edx
thin film 
thin foil
xrf
edx
thin film
thin foil
xrf
Form
Glass
Notes
4 each in E-glass
| Element | WT% |
| Gd | 3.69% |
| La | 3.74% |
| Sm | 3.88% |
| Yb | 5.08% |
| Al | 6.33% |
| Ca | 13.80% |
| Si | 23.28% |
| O | 40.20% |
| Compound | WT% |
