Rotten Stone
Description: FELDSPAR
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| K2O | 4.30% | 0.24 | |
| MgO | 2.90% | 0.38 | |
| Na2O | 4.30% | 0.37 | |
| Al2O3 | 17.70% | 0.93 | |
| SiO2 | 60.65% | 5.40 | |
| Fe2O3 | 9.04% | 0.30 | |
| LOI | 1.09% | n/a | |
| Oxide Weight | 528.93 | ||
| Formula Weight | 534.76 | ||
Notes
A soft material resulting from the decomposition of siliceous limestone, or shelly sandstone, whose CaO component has been mostly dissolved by water. Contains V and Ti impurities.
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Feldspar
The most common source of fluxes for high and medium temperature glazes and bodies. |