In an abandoned mine in southern ... total emptying of the Mediterranean Sea that is believed to have occurred about 5.5 million years ago. Based on the size of the gypsum crystals, it's likely ...

More than five years after the U.S. Gypsum Corporation shuttered the mine, manufacturing facilities and the company-owned town of Empire, Nev., the Chicago-based drywall manufacturer has sold the ...

It is a mineral used to make types of plaster which coat our homes, schools and offices - and in Cumbria sits the world's deepest gypsum mine. Outside the small village of Long Marton, against the ...

Buried beneath 85 feet of Grand Rapids soil and bedrock lies a labyrinth — a maze of man-made and forgotten tunnels from the city's old gypsum-mining industry. Sealed off at the surface ...

thanks to a new study of Earthly microbial fossils embedded in the mineral gypsum that was produced when the Mediterranean Ocean dried up over 5 million years ago. Mars was once wet, with rivers ...

It turned out that there was an old mine underneath their homes. Engineers studying the area say the remaining homeowners should leave because soils under and around their homes contain gypsum and ...