Pratibha Refractory Minerals

India is the source country for Pratibha Refractory Minerals, which lists eight active mineral products in its catalogue. The product set includes Kaolin, Pyrophyllite, Sillimanite, China Clay, Dolomite (HS 2518.10, calcium magnesium carbonate), Quartz (HS 2506.10, natural silicon dioxide), Feldspar (HS 2529.10, potash and sodium feldspar powder) and Kyanite (HS 2508.50, aluminum silicate). These items fall under the broader categories of Other Ores & Minerals, Kaolin and Quartz as classified in the supplier’s top categories. Each product is identified by its material composition, for example Dolomite as CaMg(CO3)2 and Quartz as SiO2. The catalogue does not provide additional specifications such as particle size or purity for the listed items.

Within the eight‑item list, the supplier does not disclose processing forms beyond the raw mineral description, but the HS codes indicate standard bulk export classifications used for industrial minerals. The inclusion of both aluminosilicate minerals (Kyanite, Sillimanite, Pyrophyllite) and silicate powders (Feldspar) suggests potential applications in refractory, ceramics and glass manufacturing. The Kaolin and China Clay entries are grouped under the Kaolin category, reflecting their common use as filler and pigment. No explicit certification or quality grade is indicated in the supplied data. Buyers can therefore rely on the material identifiers and HS codes when assessing compatibility with their own specification requirements.

Kaolin and China Clay from Indian sources are typically supplied with a brightness of 90 - 95 ISO units, silica content above 45 % and moisture below 2 %. Particle size distribution often targets a median size (d50) of 2 - 5 µm for fine applications, and bulk density ranges from 1.9 to 2.2 g cm‑3. Quartz exported under HS 2506.10 commonly meets a SiO2 purity of 99.5 % or higher, with moisture content under 0.5 % and a standard mesh size of 40 - 200. Feldspar powders (HS 2529.10) are usually graded to 95 - 98 % K‑ or Na‑feldspar purity, with a particle size of 200 mesh (75 µm) and bulk density around 2.5 g cm‑3. Dolomite (HS 2518.10) is generally offered with a combined CaO+MgO content of 95 % or more, calcium‑to‑magnesium ratio close to 1:1, and moisture below 1 %. Refractory aluminosilicates such as Pyrophyllite, Sillimanite and Kyanite are commonly specified by Al2O3 content (>50 %), bulk density (2.5 - 3.0 g cm‑3) and thermal stability up to 1700 °C, with particle sizes adapted to the target refractory formulation.