Calcite Powder

Calcite powder, chemically known as Calcium Carbonate (CaCO₃), is one of the most widely used industrial minerals across India and globally. At Rajgarh Minerals, we manufacture high-purity calcite powder from naturally occurring limestone deposits in the Aravalli belt of Rajasthan — one of India's richest sources of high-grade calcium carbonate. Our calcite powder is processed through a multi-stage manufacturing workflow that begins with careful raw material selection at the quarry face. Only limestone blocks meeting our minimum purity threshold of 95% CaCO₃ content are accepted for processing. These blocks undergo primary crushing, followed by fine grinding in our ball mill and hammer mill systems, and finally precision air classification to achieve the target mesh size and particle distribution. The result is a consistently white, fine, and free-flowing mineral powder that meets the exacting requirements of industries ranging from rubber compounding and paint manufacturing to plastics processing and construction chemicals. Calcite powder serves as a cost-effective functional filler in rubber compounding, where it improves hardness, dimensional stability, and processing characteristics while reducing overall compound cost. In the paints and coatings industry, it functions as an extender pigment and opacity enhancer, contributing to film build, hiding power, and scrub resistance. For plastics and polymer applications, calcite powder acts as a reinforcing filler that improves stiffness, impact resistance, and surface finish while reducing resin consumption. In construction, our calcite powder is a key ingredient in wall putty, tile adhesives, grouts, and cementitious compounds. Its consistent whiteness and particle size make it the preferred choice for manufacturers who demand batch-to-batch uniformity in their finished products. Every batch of calcite powder manufactured at Rajgarh Minerals undergoes rigorous quality testing for chemical purity, whiteness index (Hunter Lab), moisture content, oil absorption, pH, and mesh size distribution. We maintain detailed test certificates for every lot, and Technical Data Sheets (TDS) are available on request for all grades. Whether you need 100 mesh calcite for heavy-duty rubber compounds or ultrafine 500 mesh for premium paint formulations, Rajgarh Minerals has the grade, the capacity, and the consistency to meet your requirements — batch after batch, month after month.