Meanings
nounhelenite (uncountable)
alternative Helenite
- uncountableA greenish artificial gem, made by melting and vitrifying volcanic ash from the 1980 eruption of Mount Saint Helens.
Synonyms: Mount St. Helens obsidian
Synonyms & antonyms
nounA greenish artificial gem, made by melting and vitrifying volcanic ash from the 1980 eruption of Mount Saint Helens.
Similar
Mount St. Helens obsidian
Origin
From Helen + -ite. From Mount St Helens, whose volcanic ash is used to manufacture helenite.
Full word history & related roots →Cite this entry
APA
helenite. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/helenite
MLA
“helenite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/helenite. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “helenite,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/helenite.
Source: helenite on Wiktionary, CC BY-SA 4.0.