Hydrolysis is a chemical weathering or decomposition process. Hydrolysis happens when there is a reaction between the minerals in a rock and the hydrogen in water. There are two types of hydrolysis, acid and enzymatic. Hydrolysis is most common in igneous and metamorphic rocks. Some of the rocks in these categories are igneous rock and metamorphic rock.
As the hydrolysis process goes on, the rock becomes more susceptible to water entering. If more and more water keeps entering, the rock will start to chip and crack, this is because the minerals in the rock became very weak. And, after the hydrolysis process begins, it is irreversible.