单词 | coesite |
释义 | coesite /koh"suyt/, n. Mineral. a rare form of silicon dioxide, a denser polymorph of quartz, originally synthesized from quartz at high temperatures and pressures: later discovered in nature. Cf. stishovite. [1950-55; named after Loring Coes, Jr., 20th-century American who synthesized it; see -ITE1] |
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