fluocerite
/fluˌɒsəˈraɪt/Definitions
1. noun
A rare mineral consisting of cerium fluoride, usually found in igneous and metamorphic rocks.
“The geologist discovered a rare sample of fluocerite in the newly excavated mine.”
2. noun
A mineral form of cerium fluoride.
“Fluocerite is one of the many rare minerals found in the geological formation.”