Evaluation of aqueous geochemistry of fluoride enriched groundwater: A case study of the Patan district, Gujarat, Western India

Saturation index for selected minerals suggests that most of the samples are oversaturated with calcite and undersaturated with fluorite. Calcite precipitation leads to the removal of Ca2+ from solution thus allowing more fluorite to dissolve. These released Ca2+ ions combine with CO32− ions to further enhance the precipitation of CaCO3.