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| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| K2O | 10.00% | 0.67 | |
| Na2O | 2.70% | 0.28 | |
| CaO | 0.20% | 0.02 | |
| MgO | 0.10% | 0.02 | |
| P2O5 | 0.30% | 0.01 | |
| Fe2O3 | 0.10% | - | |
| Al2O3 | 17.30% | 1.07 | |
| SiO2 | 69.20% | 7.29 | |
| LOI | 0.65% | n/a | |
| Oxide Weight | 632.81 | ||
| Formula Weight | 636.95 | ||
| Materials |
Feldspar
In ceramics, feldspars are used in glazes and clay bodies. They vitrify stonewares and porcelains. They supply KNaO flux to glazes to help them melt. |
| Hazards |
Feldspar
Feldspars are abundant and varied in nature. They contain small amounts of quartz (while nepheline syenite does not). |
| Typecodes |
Feldspar
The most common source of fluxes for high and medium temperature glazes and bodies. |
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