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Feldspar, G-200 - 1 lb.
Potash, Sodium, Calcium 200 mesh Feldspar. G-200HP Feldspar is made from crushed crystalline rock containing a mixture of aluminum silicates of sodium and potassium. Contains 10.75% K2O, 3.04% Na2O, .81% Cao. G-200HP Feldspar is a high quality potassium / sodium / calcium aluminum silicate ground to 200 mesh for ceramic applications. Carefully beneficiated and controlled for quality, G-200HP offers high potash content and low iron oxide per unit of alumina. August 2009: The Feldspar Corporation has traditionally blended sodium feldspar from Spruce pine, NC with potassium feldspar from Monticello, GA. This was done in an effort to match the chemistry from a depleted mine. However this material is being replaced by G-200HP. It is higher in potassium and alkali levels because the blending practice is being stopped by Imerys. They are recommending a 7:3 blend of sodium feldspar (Minspar 200) with the new G-200HP feldspar to match G200. Source: Digital Fire.
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