Calcite mineral is the most stable polymorph of calcium carbonate. The natural calcite is available as colourless, grey, yellow and even green calcite. We are the most prominent among the calcite manufacturers in India. Calcite mineral is soluble in dilute acid. The range of its diaphaneity is from transparent to translucent. Calcite can be dissolved by groundwater or precipitated by groundwater, depending on climatic factors including the water temperature, pH, and dissolved ion concentrations.