Sexually transmitted diseases (STDs) remain a major public health challenge in the U.S., especially among women, who. disproportionately bear the long-term consequences of STDs. For example, each year untreated STDs cause infertility in.
Chemically known as âcalcium sulfate dihydrate,â gypsum contains calcium, sulfur bound to oxygen, and water. Gypsum is an abundant mineral and takes forms including alabasterâa material used in decoration and construction as far back as ancient Egypt.hemically known as âcalcium sulfate dihydrate,â gypsum contains calcium, sulfur bound to oxygen, and water. Gypsum is an abundant mineral and takes forms including alabasterâa material used in decoration and construction as far back as ancient Egypt.
Gypsum is the more common name for a mineral compound called calcium sulphate dihydroxide, or sulphate of lime.It is generally found underground near deposits of limestone or other minerals formed by evaporation.One of the most common forms of raw gypsum is a pure white crystal called alabaster.ypsum is the more common name for a mineral compound called calcium sulphate dihydroxide, or sulphate of lime.