| 单词 | black magnesia |
| 释义 | > as lemmasblack magnesia ΘΚΠ the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > rutile and uranite groups A02 > manganese dioxide brownstone1657 manganese1662 magnesia1677 soap of glass1815 pyrolusite1828 varvicite1829 polianite1849 manganese dioxide1866 pelagite1876 manganese oxide1882 1677 R. Plot Nat. Hist. Oxford-shire 79 Magnesia (in the Glass-houses, called Manganese). 1712 J. Browne tr. P. Pomet et al. Compl. Hist. Druggs I. 103/2 The last ingredient [of Cristalline Glass] is Manganese, or Magnesia, so called from its Likeness in Colour, Weight and Substance to the Load-Stone. 1753 Chambers's Cycl. Suppl. at Magnissa Many have supposed the Magnissa to be the same with magnesia, that is, manganese, but this is an error. 1797 Encycl. Brit. X. 427/1 Black Magnesia. See Manganese. < as lemmas |
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