Crystalline minerals made up of mainly silica and alumina in combination with sodium and potassium oxides. Often considered a natural frit. Used extensively in both clay, up to 25% and glaze, up to 100%.
Minspar-200 is a 200 mesh flotation grade soda Feldspar
Typical analysis:
SiO2 68.6%
Al2O3 18.5%
Na2O 6.5%
K2O 4.1%
CaO 1.5%
Fe2O3 0.06%
LOI 0.3%
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