What is Soda Feldspar?

Feldspar is by far the most abundant group of minerals in the earth’s crust, forming about 60% of terrestrial rocks. Most deposits offer sodium feldspar as well as potassium feldspar and mixed feldspars. Chemically, the feldspars are silicates of aluminium, containing sodium, potassium, iron, calcium, or barium or combinations of these elements. Most of the products we use on a daily basis are made with feldspar: glass for drinking, glass for protection, fiberglass for insulation, the floor tiles and shower basins in our bathrooms, and the tableware from which we eat. Feldspar is part of our daily life.

Feldspar properties:

Basically, the two properties which make feldspars useful for downstream industries are their alkali and alumina content. Feldspars play an important role as fluxing agents in ceramics and glass applications, and also are used as functional fillers in the paint, plastic, rubber and adhesive industries. The glass & ceramic industries are the major consumers of feldspar. This makes it a very essential mineral in our day-to-day life.

 Products“SUN ULTRA”
SilicaSiO268% (+/- 1%)
AluminaAl2O318% (+/- 1%)
Ferric OxideFe2O30.07%
Titanium OxideTiO2Nil
Sodium OxideNa2O3% (+/- 0.5%)
Potassium OxideK2O10.5% (+/- 1%)
Magnesium OxideMgO0.1%
Calcium OxideCaO0.05%
Loss on IgnitionLOI0.01%
Firing Result Milky
Visual Apperance White


  • Wall & Floor Tiles – glazed Tiles, Vitrified Homogenous Tiles, Fast Firing, Third Firing.
  • Vitreous Porcelain – Tableware & Other Ceramic product.
  • Enameled Ceramics & Potteries.
  • Technical & Advanced Ceramics.
  • Vitrified Pipes & other Products.
  • Frits & Glaze.