tranquillityite en · NOUN
Etymology
From tranquillity + -ite, after the Sea of Tranquillity, a basin on the Moon where the mineral was first found.
Meanings
- A hexagonal dark red mineral containing iron, oxygen, silicon, titanium, yttrium, and zirconium.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| tranquillityites | Number=Plur | lexicographic |