👉 Gypseine is a chemical compound that is found naturally in certain types of rocks, such as granite and pyrite. It is composed of sulfur compounds called hydroxylates, which are also present in other minerals like quartz or feldspar. Gypseine is used to make paints, varnishes, and other coatings. Gypseine is a colorless, odorless, non-toxic substance that is soluble in water but insoluble in most acids such as sulfuric acid (
