Question

Where does gypsum often form

Answer 1

Laggoons where ocean waters are high in calcium

Answer 2

It forms in lagoons where ocean waters high in calcium and sulfate content canslowly evaporate and be regularly replenished with new sources of water. The result is the accumulation of large beds of sedimentary gypsum. Gypsum is commonlyassociated with rock salt and sulfur deposits.