dumortierites
/duˈmɔrtiəˌraɪts/
noun
- Plural of dumortierite; multiple pieces or types of the mineral dumortierite.
- The dealer offered a set of polished dumortierites for sale at the gem show.
- She collected dumortierites from around the world, each with a slightly different shade.
- The museum's geology exhibit displayed several dumortierites from different mines.