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A selected white firing high grade potassium feldspar ground to 200 mesh for ceramic applications. Moderate potash content and low iron oxide. A good substitute for Custer Feldspar.
| Typical analysis: | |
| SiO2 | 67.00% |
| Al2O3 | 17.50% |
| Na2O | 3.00% |
| K2O | 11.50% |
| CaO | 0.15% |
| MgO | 0.15% |
| Fe2O3 | 0.08% |
| LOI | 0.50 |