Industrial Feldspar Lumps & Powder (Potash & Soda)
We extract and sort premium sodium-rich Albite (Soda Feldspar) and potassium-rich Microcline (Potash Feldspar) minerals from verified mining blocks. Our Feldspar lumps function as an essential fluxing agent that controls firing temperatures in ceramics and glassware.
Used in the manufacturing of vitrified floor tiles, porcelain sanitaryware bodies, glazes, electrical high-tension insulators, and container glassware. It helps lower the melting point of silica, coordinates stable glassy phases, and increases vitrification ranges.
Technical Grades Specifications
| Grade | Description | Target Applications |
|---|---|---|
| Grade A | Premium white chunks (>11.5% K2O or >10% Na2O, Fe2O3 < 0.08%). Zero iron staining. | Luxury porcelain tableware, sanitaryware glaze, high-tension electrical insulators. |
| Grade B | Standard white minerals (>10.5% K2O or >9% Na2O, Fe2O3 < 0.12%). | Vitrified tiles bodies, floor glazes, container glassmaking. |
| Grade M | Commercial industrial chunks (>9.5% alkali content). Low fusion threshold. | Ceramic frit coatings, fiberglass binder, wall tiles body. |