GEOLOGY

Detailed explanation-1: -Evaporite rocks form when sea water or lake water dries up and precipitates gypsum (CaSO4·2H2O), halite (NaCl), or other minerals. Evaporites are chemical sedimentary rocks.

Detailed explanation-2: -Composition of Sedimentary Rocks (Part 3) Gypsum, shown left, and halite, shown right, are common examples of evaporitic sedimentary rocks.

Detailed explanation-3: -Halite is part of a group of chemical sedimentary rocks called evaporites. Evaporites form as the water in the original solution evaporates and leaves the sediment (in this case, salt) behind. Halite, commonly known as rock salt, forms as the water in the original solution evaporates.

Detailed explanation-4: -Rock gypsum (a.k.a. gyprock) is a chemical sedimentary rock. It is an example of an evaporite-it forms by the evaporation of water (usually seawater) and the precipitation of dissolved minerals. Rock salt & rock gypsum often occur together in evaporitic successions.

Detailed explanation-5: -Rock salt is the name of a sedimentary rock that consists almost entirely of halite, a mineral composed of sodium chloride, NaCl.