Just why the Romans did this, though, remains a mystery. The experts that made the discovery found that the natural properties of gypsum hardened and formed a plaster-like casing, creating ...
CLEVELAND, Ohio (WOIO) - Ohio Attorney General Dave Yost announced a nearly $17 million lawsuit against U.S. Gypsum (USG) Tuesday for what he says are sinkholes opening up near State Route 2 ...