FELDSPAR
Premium Feldspar
A vital fluxing agent and prime alumina source, engineered to lower melting temperatures, reduce energy consumption, and enhance the durability of glass and ceramics.
Feldspar Overview
Feldspar represents the most abundant group of minerals in the Earth's crust. Industrially, it is highly valued for its dual role: acting as an exceptional flux and providing a stable source of alumina and alkali.
By lowering the melting temperature of quartz and clays, our premium Feldspar significantly reduces energy consumption during the firing of glass and ceramics. We supply both Potassium Feldspar (K-Spar) and Sodium Feldspar (Na-Spar), each processed to meet stringent industrial purity standards.
Furthermore, its alumina content imparts increased resistance to scratching, bending, and thermal shock, ensuring the final manufactured products are highly durable and resilient.
- Essential flux for glass and ceramic manufacturing
- Drastically reduces kiln firing energy consumption
- High alumina content for structural strength
- Extremely low iron and titanium levels (high purity)
- Available in varied particle sizes (chips to micro-powder)
- Enhances the vitrification process in ceramic bodies
Chemical Composition
65 - 70%
17 - 19%
9 - 13%
< 0.1%
Industrial Applications
Glass Manufacturing
The alumina provides hardness, workability, and chemical durability to glass, while alkalis act as a flux to lower melting points.
Ceramics & Porcelain
Crucial for vitrification. It melts during firing, forming a glassy matrix that binds other particles together.
Glazes & Enamels
Used to ensure a smooth, uniform, and glossy finish on ceramic tiles, sanitaryware, and tableware.
Fillers & Extenders
Utilized in the plastics, rubber, and paint industries for its chemical inertness, high durability, and resistance to wear.
Technical Specifications
| Properties | Value |
|---|---|
| Mineral Type | Potassium Feldspar (Orthoclase) / Sodium Feldspar (Albite) |
| Appearance | White to pale pink or pale grey powder/granules |
| Mohs Hardness | 6.0 |
| Specific Gravity | 2.56 - 2.76 g/cm³ |
| Melting Point | Approx. 1150°C - 1250°C |