Just why the Romans did this, though, remains a mystery. The experts that made the discovery found that the natural ...

limestone and gypsum as additives in cement manufacturing Limestone and gypsum grinding plant for cement additive.Zenith has been engaged for decades in mineral material grinding equipment R&ampD and ...

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Nearly every state has limestone, gypsum and other soft rocks that are susceptible to a collapse. "In 99% of all cases, sinkholes pop up in carbonate rocks (like limestone or dolomite) or ...

Archaeologists have uncovered a Roman -era cemetery in England with the unique burial of a “high-status individual” encased ...