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Calcite is the purest form of Natural Calcium Carbonate (CaCO3) it occurs naturally as a crystalline, rhomboheral shaped Calcium Carbonate. It decomposes in acids, has a Mohs hardness of 3 and specific gravity 2.7 to 2.9.

Wolkem's strength in GCC


Wolkem has remained India’s largest Calcite miner and continues to be one of India’s leading GCC producer, since 1972

Competitive Edge

Enormous Mineral Reserves

Wolkem’s strength in GCC comes from owning India’s largest Calcite reserves, having its own mines in Vietnam and due to its long term supply arrangements with mine owners in India, S.E. Asia and Middle East


Wolkem’s competitive edge is its scientific mining practises, state of the art beneficiation, grinding & surface coating technology and its automated processes which ensures consistency in product quality from mines to market. Our GCC is sold under the trade names Addon, Calkron, Calsun, Belsun, Fillex


Wolkem’s GCC mining, mineral sourcing and processing operations are spread across 6 Indian States of Rajasthan, Himachal Pradesh, Tamil Nadu, Orissa, Gujrat  and Andhra Pradesh  which gives us a competitive edge in terms of just-in-time supply & services to customers across India.

Research and Development

Wolkem is constantly creating changes in the Indian Carbonate business, through product and application leadership. After all Wolkem has been the 1stcompany in India to produce Microbial Controlled GCC, Indian pharmacopoeia certified GCC and Wet Ground Calcium Carbonate (WGCC).


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