| 单词 | tridymite |
| 释义 | tridymite (once / 1477414 pages) n WORD FAMILY tridymite USAGE EXAMPLESIt was tridymite, a mineral that is rare on Earth and has never seen before on Mars. New York Times(Dec 17, 2015) When crystalline grains or blebs of quartz occur, we have a quartz-trachyte; when tridymite is abundant, as in the trachyte of Co. Hull, Edward, Volcanoes: Past and Present(2010) It was of the texture and roughness of granite, but more heavily shot with quartz, or tridymite than any other granite he'd ever seen. Ernst, Paul, The Planetoid of Peril(2010) n a mineral form of silica Hyper mineral solid homogeneous inorganic substances occurring in nature having a definite chemical composition |
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