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tridymite |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Tridymite \Trid"y*mite\, n. [Gr. ? threefold. So called in allusion to the supposed threefold nature of the twin crystals.] (Min.) Pure silica, like quartz, but crystallizing in hexagonal tables. It is found in trachyte and similar rocks. From WordNet r 1.6 [wn]: tridymite n : a mineral form of silica
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