Solution breccia is a type of rock that forms when soluble minerals dissolve in water, leaving behind a breccia composed of clasts held together by a cement of precipitated minerals. Synonyms for solution breccia include dissolution breccia, karst breccia, and cave breccia. These terms are often used interchangeably to describe brecciated rocks formed by the dissolution of soluble minerals in water, typically in karstic environments such as caves, sinkholes, and underground rivers. Other related terms include collapse breccia, which forms when overlying strata collapse into underground cavities, and talus breccia, which forms at the base of cliffs or other steep surfaces where rocks fall and accumulate.