tridymite

Fetched 2026-10-26 (cache).

Synonyms: trydimite

Antonyms: trydimite

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|mineral}} A rare [[mineral]] of [[volcanic]] [[rock]]s that solidified at a high temperature, with the chemical composition [[silicon dioxide]], [[silicon|Si]][[oxygen|O]]₂. 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.

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