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| FELDSPAR NC-4 |
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Pottery Feldspars
Fillers and Extenders |
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Chemical Analysis:
SiO2: 68.35%
AL2O3: 18.60
Fe2O3: 0.07
CaO: 1.85
MgO: Trace
K2O: 3.80
Na2O: 7.20
Ignition Loss: .13
Screen Analysis (Cum.):
170 Mesh: 1.5% +200, 10.0% +325
200 Mesh: 0.4% +200, 5.0% +325
250 Mesh: 10% +200, 2-5% +325 |
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