What is another word for caliche?
Pronunciation: [kɐlˈiːt͡ʃi] (IPA) 
Caliche is a word that can be used in different contexts and can have different meanings. In geology, it refers to a type of sedimentary rock that is composed of cemented gravel, sand, and clay. But it can also refer to a layer of mineral deposits that accumulate in soils, which can limit crop growth. Synonyms for caliche include hardpan, duricrust and kunkar. Hardpan is a compacted layer of soil that impedes the movement of water and nutrients. Duricrust is a hard layer that forms on top of soil due to mineral precipitation. Kunkar is a layer of calcium carbonate that occurs in arid regions. These terms are often used interchangeably in some regions, depending on the type of soil and the regional dialect.
