Fragen über die Beispielsätze mit, und die Definition und Benutzung von "Gypsum"

A: A chemical term

A: Gypsum is a raw material that plaster can be made of.

A: There was a huge gypsum mine near Paris, France, so people started referring to it by the name of the city.

A: × Gypsum deposits occur under the surface.
✓ Gypsum deposits occur under the ground surface.

× The Baskunchak deposit of gypsum has a significant role among other reservoirs of construction materials.
✓ The Baskunchak deposit of gypsum is a significant source of construction materials.

× The deposit development has been going since 1933 by the Baskunchak gypsum factory that produces gypsum stones and milled raw gypsum.
✓ Since 1933, the Baskunchak gypsum factory has produced gypsum stones and milled raw gypsum.

× A sandy and argillaceous overburden with an average thickness of 56 meters covers the gypsum deposit atop.
✓ A sandy and argillaceous overburden with an average thickness of 56 meters covers the gypsum deposit.

× The blasting method is used for gypsum development.
✓ Blasting is commonly used in gypsum mining.

× A German company Knauf also participates in the development of the gypsum deposit in Astrakhan Oblast.
✓ A German company Knauf also participates in the mining of the gypsum deposit in Astrakhan Oblast.

Cool topic!