mineralwaterrock
Mineralwaterrock is a hypothetical geological term that has not been formally recognized or widely used in the scientific community. It is not a standard classification of rock or mineral. The name itself suggests a rock formed from or containing mineral-rich water, or perhaps a rock that is saturated with water that has dissolved minerals.
In a general sense, rocks can be formed from mineral precipitation from water. For instance, sedimentary rocks
If "mineralwaterrock" were to be interpreted as a rock that is currently saturated with mineral-rich groundwater,