actinolite
noun
actinolite is a noun meaning “A mineral with monoclinic crystals of the chemical formula Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂, belonging to the amphibole group” (English Wiktionary, September 2026). It is spelled A-C-T-I-N-O-L-I-T-E, and it appears about once in every 49 million words in written English (wordfreq, 2021 data). The plural of actinolite is actinolites.
What does actinolite mean?
noun
- 1
A mineral with monoclinic crystals of the chemical formula Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂, belonging to the amphibole group.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of actinolite
- actinolites plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is actinolite?
Actinolite appears about once in every 49 million words in written English, the 217,360th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Actinolite in Spanish, French, German and Portuguese
In the sense mineral with monoclinic crystals belonging to the amphibole group:
| Language | Words |
|---|---|
| French | actinote |
| German | Aktinolith |
| Portuguese | actinolita, actinolite, actinolito |
| Spanish | actinolita |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does actinolite come from?
From actino- + -lite.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).