umbalite en · NOUN
Etymology
Named for the Umba Valley of the Tanga Region of Tanzania, the location of the mineral’s first discovery in 1978: Umba + -lite.
Meanings
- (uncountable, usually) A variety of garnet consisting of a mixture of pyrope, almandine, and spessartine, having the chemical formula Mg₃Al₂(SiO₄)₃-Mn²⁺₃Al₂(SiO₄)₃, exclusively found in the alluvial deposits of the River Umba, and having a light-pink to purple colour.
- (countable, usually) A gemstone consisting of the mineral umbalite.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| umbalites | Number=Plur | lexicographic |
wikipedia: Tanga Region · wikipedia: Tanzania · wikipedia: Umba Valley