Meanings
nountridymite (countable and uncountable, plural tridymites)
plural tridymites
- countableuncountablechemistryA rare mineral of volcanic rocks that solidified at a high temperature, with the chemical composition silicon dioxide, SiO₂. Tridymite is chemically identical to quartz, but has a different crystal structure. Sometimes contains sodium aluminum silicate, which seems to be expelled when quartz solidifies at lower temperatures.
Origin
The name refers to the peculiar habit of crystallizing in groups of three individuals.
Full word history & related roots →Translations
Catalan tridimita
- tridimitamineral
Chinese Mandarin 鱗石英 /鳞石英
- 鱗石英 /鳞石英 (línshíyīng)mineral
Finnish tridymiitti
- tridymiittimineral
German Tridymit
- Tridymitmineral
Japanese 鱗珪石, 鱗石英
- 鱗珪石 (rinkeiseki)mineral
- 鱗石英 (rinsekiei)mineral
Polish trydymit
- trydymitmineral
Romanian tridimit
- tridimitmineral
Russian тридими́т
- тридими́т (tridimít)mineral
Spanish tridimita
- tridimitamineral
Cite this entry
APA
tridymite. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/tridymite
MLA
“tridymite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/tridymite. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “tridymite,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/tridymite.
Source: tridymite on Wiktionary, CC BY-SA 4.0.