Element | Wt % |
| Oxide | Wt % |
O | 40.62 | | | |
Mg | 0.34 | | MgO | 0.56 |
Si | 21.96 | | SiO2 | 46.98 |
P | 0.33 | | P2O5 | 0.76 |
Ti | 0.32 | | TiO2 | 0.53 |
Cr | 0.31 | | Cr2O3 | 0.45 |
Ni | 0.33 | | NiO | 0.42 |
Zn | 2.95 | | ZnO | 3.67 |
Ge | 30.39 | | GeO2 | 43.78 |
Zr | 0.61 | | ZrO2 | 0.82 |
Eu | 0.95 | | Eu2O3 | 1.10 |
Th | 0.06 | | ThO2 | 0.07 |
U | 0.16 | | UO2 | 0.18 |
|
|
| |
|
Sum | 99.3 | |
Sum | 99.3 |
|
|
3mm and smaller black prisms
|
|