Hydrostone (Southard)

This shiny white mineral is called gypsum, and this specimen from England is known as a satin spar. Gypsum has an impressive number of uses. In modern construction, it is used like cement blocks, as well as being the primary ingredient in drywall. It is also used in the agricultural sector. Fine-grained white or lightly colored gypsum is called alabaster, and it has been used for sculpting by many different cultures, including Mesopotamia, Ancient Rome, and Nottingham, England. Gypsum is formed

Uses of gypsum - Uses of gypsum in agriculture and various other gypsum uses