hellandite
Fetched 2026-10-26 (cache).
Synonyms: heulandite, hollandite
Antonyms: heulandite, hollandite
Related words from Datamuse; suggestions, not definitions.
Noun
- {{lb|en|mineral}} A [[monoclinic]] [[borosilicate]] [[mineral]] containing [[rare earth]]s, [[aluminium]] and [[calcium]].
Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.