| 单词 | adamantine spar |
| 释义 | > as lemmasadamantine spar adamantine spar n. [compare French spath adamantin (1786 or earlier)] now rare = corundum n. 1. ΘΚΠ society > occupation and work > materials > raw material > mineral material > [noun] > corundum or emery adamantine spar1786 flour-emery1884 the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > corundum group A2 03 > corundum corundum1728 adamantine spar1786 corindon1802 corundite1861 1786 Monthly Rev. 75 App. 500 The ordinary and Syrian garnets, the amethyst, and the adamantine spar of Bergman. 1809 Weekly Entertainer 19 June 484 I discovered the same calx..in a species of adamantine spar from the distant region of Thibet. 1916 A. J. Moses & C. L. Parsons Elements Mineral., Crystallogr. & Blowpipe Anal. (ed. 5) xviii. 413 Adamantine spar and emery are important abrasive materials. < as lemmas |
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