A light-colored porous calcite, CaCO3, deposited from solution in ground or surface waters and forming, among other deposits, stalactites and stalagmites.

• 石灰华一种淡色的多孔方解石，分子式为CaCo3，溶解储存于地下或地表水中。它还形成钟乳石和石笋，这也是它的另外一种存在方式