| WT-1893 | Approximate comp. |
| SiO2 | 5 |
| CaO | 4 |
| K2O | 2 |
| Na2O | 2 |
| BaO | 1 |
| TiO2 | 3 |
| Al203 | 3 |
| Fe203 | 1 |
| MgO | 1 |
| B203 | 2 |
| ZnO | 1 |
| PbO | 1 |
| WT-1891 | Approximate comp. |
| SiO2 | 5 |
| CaO | 4 |
| K2O | 2 |
| Na2O | 2 |
| Fe203 | 1 |
| TiO2 | 3 |
| Al203 | 2 |
| MgO | 1 |
| B203 | 1 |
| BaO | 1 |
| ZnO | 1 |
| PbO | 1 |
| WT-1895 | Approximate comp. |
| SiO2 | >64.00 |
| CaO | >13.0 |
| MgO | >1.0 |
| Al2O3 | >4.00 |
| ZnO | >4.50 |
| Fe203 | <0.10 |
| K2O | >2.3 |
| Na2O | >2.3 |
| B2O3 | >2.10 |
| TiO2 | >10.00 |
| WT-1899 | Approximate comp. |
| SiO2 | >64.00 |
| CaO | >17.5 |
| MgO | >0.50 |
| Al2O3 | >3.5 |
| Fe203 | <0.10 |
| K2O | >2.0 |
| Na2O | >2.1 |
| TiO2 | >7.50 |
| WT-1891 | Approximate comp. |
| SiO2 | >52.5 |
| Al2O3 | >3.50 |
| Na2O | >2.20 |
| K2O | >12.50 |
| CaO | >0.50 |
| MgO | >2.00 |
| B2O3 | >10.50 |
| Fe2O3 | <0.10 |
| WT-9002 | Approximate comp. |
| SiO2 | >54.00 |
| Al2O3 | > 10.00 |
| Na2O | > 8.00 |
| K2O | > 5.50 |
| CaO | >9.50 |
| MgO | >2.50 |
| ZrO2 | >7.50 |
| Fe2O3 | <0.12 |
| WT-1099 | Approximate comp. |
| SiO2 | 5 |
| CaO | 4 |
| K2O | 2 |
| Na2O | 1 |
| BaO | 2 |
| MgO | 2 |
| B2O3 | 2 |
| ZnO | 3 |
| PbO | 1 |
| Al2O3 | 3 |
| Fe203 | 1 |
| TiO2 | 1 |
| WT-1873 | Approximate comp. |
| SiO2 | 4 |
| CaO | 1 |
| MgO | 0 |
| Al2O3 | 2 |
| ZnO | 0 |
| ZrO2 | 1 |
| K2O | 0 |
| Na2O | 2 |
| B2O3 | 2 |
| BaO | 4 |
| PbO | 0 |
| TiO2 | 0 |
| LiO2 | 0 |