Labels:bulletin board | hakham | poster | sky | window OCR: Abuse and Impact Gypsum Synthetic Gypsum is a by product of cleaning the emissions of the coal burning power plants When the coal burns Sulfur Dioxide (SO) IS captured in the coal stacks so it is not released into the environment Bv Chemically combining slurry limestone (calcium carbonate) and water with the sO, high purity gypsum is formed
