magnesite
/ˈmæɡnəˌsaɪt/
noun
- A white, gray, or yellowish mineral that is a source of magnesium, used in making refractory bricks and other products.
- The factory imports magnesite to produce heat-resistant bricks for furnaces.
- Magnesite is also used to make certain types of flooring and wall panels.
- Miners extracted magnesite from the quarry for use in the chemical industry.