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 ...

It’s rare to see items labeled “Made in USA” — but several indispensable products are made right here in Colorado. A subset of these have ingredients that come from in-state, rather than being ...

Sir, – On behalf of the four major gypsum board and plaster manufacturers in Britain and Ireland, the Gypsum Products Development Association would like to respond to Dr Gerard Murphy and Dr Brian ...