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Feldspar |
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|  Feldspar is the most common rock-forming mineral (about 60% of the earth’s crust). The mineral name feldspar is derived from the German words feld + spar. Feldspar minerals are usually white or very light in color, have a hardness of 6 on the Mohs’ Scale of Hardness and perfect to good cleavage (plane of breakage) in two directions. Feldspar is a common name that applies to a group of minerals with a general chemical formula of x Al(Al,Si)3O8, where x can be sodium (Na) and/or calcium (Ca) and/or potassium (K). (Specific compositional varieties (i.e. albite, microcline…) are discussed under Mineral Descriptions). Feldspar weathers to kaolin which is the main clay mineral used in ceramics and fine pottery.
We supply the best quality Feldspar Powder which is hard to find anywhere else. Also, our Sodium Feldspar is available at the most reasonable rates. We are one of the largest Feldspar Mineral Manufacturers besides being one of the best Feldspar Powder Exporters in India.
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Typical Physiochemical Properties
| Properties | Unit | Value | | Bulk Density | | | | Whiteness (Compared to MgO) | | | | Moisture | | | | Water Absorption | | | | pH of 5% aqueous slurry | | ~ 9.0 | | Specific Gravity | (g/cc) | 2.60-2.65 | | Refractive Index | | | | Silica SIO2 | % max | 65.25 | | Alumina Al2O3 | % max | 20.32 | | Ferric Oxide Fe2O3 | % max | 0.14 | | Titanium Oxide TIO2 | % max | Nil | | Manganese Oxide MnO | % max | Nil | | Calcium Oxide CaO | % max | Nil | | Magnesium Oxide MgO | % max | Nil | | Sodium Oxide Na2O | % max | 2.23 | | Potassium Oxide K2O | % max | 10.74 | | Loss on Ignition | % max | 0.31 | | Residue on 500 mesh | | | | Average particle size | | | | Packing | | 50 lbs. bags, bulk bags, loose bulk |
End Application
Ceramic tiles, whiteware, glazes, glass, porcelain enamel frits, ceramics, filler, welding electrodes, and abrasives.
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