gibbsite
/ˈɡɪbzaɪt/
noun
- A mineral, a hydroxide of aluminum, often found in bauxite deposits and used in the production of aluminum.
- Gibbsite is one of the main minerals in bauxite ore.
- Aluminum is extracted from gibbsite through the Bayer process.
- The geologist identified the white, chalky mineral as gibbsite.