tridymite

English

Tridymite

Etymology

The name refers to the peculiar habit of crystallizing in groups of three individuals.

Noun

tridymite (countable and uncountable, plural tridymites)

1. (mineralogy) A 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.

Related terms

See silicate, silica group

Translations

mineral

• Chinese:

  Mandarin: 鱗石英／鳞石英 (zh) (línshíyīng), 鳞石英 (zh) (línshíyīng)

• (deprecated template usage) {{trans-mid}}
• Finnish: tridymiitti
• Japanese: 鱗珪石 (りんけいせき, rinkeiseki), 鱗石英 (りんせきえい, rinsekiei)

Further reading

• David Barthelmy (1997–2024) “Tridymite”, in Webmineral Mineralogy Database.
• “tridymite”, in Mindat.org‎^[1], Hudson Institute of Mineralogy, 2000–2024.