Gypsum is a naturally occurring mineral that has been used in the United States since Benjamin Franklin first applied ground raw gypsum, called land plaster, on his soils. Today, as Franklin did then, ...

Q: We grow tomatoes in a little raised bed and have always used garden lime in the past. I keep hearing about using gypsum for calcium, but I worry that it will make the soil more acid. Sylvia Adcock ...

Warren Dick has worked with gypsum for more than two decades. You'd think he'd be an expert on drywall and plastering because both are made from gypsum. But the use of gypsum that Dick studies might ...

President Joe Biden's Environmental Protection Agency has reversed the agency's approval to add radioactive phosphogypsum wastes to materials used by government contractors to build roads. It ...

Gypsum, a source of calcium and sulfur, can benefit crops and soils. When recovered from power plant smokestacks, it brings the additional benefits of recycling. Warren Dick has worked with gypsum for ...