Eureka Feldspar
Description: Legacy low calcium potash feldspar
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 0.01% | - | |
| K2O | 9.37% | 0.64 | |
| Na2O | 3.49% | 0.36 | |
| Al2O3 | 17.05% | 1.07 | |
| SiO2 | 69.70% | 7.44 | |
| Fe2O3 | 0.11% | - | |
| LOI | 0.20% | n/a | |
| Oxide Weight | 639.55 | ||
| Formula Weight | 640.83 | ||
Related Information
Links
| Materials |
Custer Feldspar
The most common potash feldspar used in ceramics in North America. While having been a standard for many decades its supply appears in doubt in 2024. |
| Materials |
Potash Feldspar
A feldspar having a KNaO content that predominates in potassium. |
| Typecodes |
Feldspar
The most common source of fluxes for high and medium temperature glazes and bodies. |