tridymite
[ trid-uh-mahyt ]
/ ˈtrɪd əˌmaɪt /
noun Mineralogy.
a polymorph of quartz occurring in the form of small crystals, commonly twinned, in siliceous volcanic rocks.
Words nearby tridymite
tridentine,
tridentum,
tridermic,
tridimensional,
triduum,
tridymite,
triecious,
tried,
tried and true,
tried-and-true,
triella
Example sentences from the Web for 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 |DAILY BEASTSpherulites may be regarded as radiate aggregates of such microliths (mostly felspar mixed with quartz or tridymite).
When crystalline grains or blebs of quartz occur, we have a quartz-trachyte; when tridymite is abundant, as in the trachyte of Co.
Volcanoes: Past and Present |Edward Hull