Cave Salt

Inside the caves some salts are precipitated on the cave walls by direct evaporation. Additionally groundwater is leaching the mineral-rich rocks and reacts with animal excreta in the humid environment forming a series of secondary carbonate, sulphate, halide, nitrate and phosphate minerals. “The salt crust developed on the rock debris on the floor of the cave differs in being considerably thicker and is mineralogically more complex.” (Bowell et al. 1996).