tridymite


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Related to tridymite: cristobalite

trid·y·mite

(trid'i-mīt),
A form of silica used in dental casting investment.
[fr. G. tridymos, threefold]

trid·y·mite

(trid'i-mīt)
Form of silica used in dental casting investment.
[fr. G. tridymos, threefold]

tridymite (trid´imīt),

n a physical form of silica used in combination with cristobalite to limit thermal expansion.
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References in periodicals archive ?
Sand additives that reduce veining defects provide liquid on the surface of the sand grain and favor formation of tridymite or cristobalite and greater expansion of the sand.
10[Angstrom]) is predominant and is very close to one of the peak of tridymite [6].
Department of the Interior 2003], of which quartz, cristobalite, and tridymite are the most common.