Liberal Dictionary English Dictionary
tridymite [trid-uh-mahyt] ExamplesWord Origin noun Mineralogy.
- a polymorph of quartz occurring in the form of small crystals, commonly twinned, in siliceous volcanic rocks.
Origin of tridymite 1865–70; German Tridymit, equivalent to tridym- (Greek trídym(os) triple, equivalent to tri- tri- + (dí)dymos didymous) + -it -ite1 Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 Examples from the Web for tridymite Contemporary Examples of tridymite
The crystals, called cristobalite and tridymite, swim in clouds around stars just before they begin to form planets.
Space Bling: From Diamond Planets to Crystal Oceans to Precious Moon Jewels
Alexa Valiente, Jaewon Kang
October 13, 2012
Historical Examples of tridymite
Spherulites may be regarded as radiate aggregates of such microliths (mostly felspar mixed with quartz or tridymite).
Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7
Various
When crystalline grains or blebs of quartz occur, we have a quartz-trachyte; when tridymite is abundant, as in the trachyte of Co.
Edward Hull
