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单词 red manganese
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red manganese
red manganese n. (also red manganese ore) [originally after Swedish röd magnesia (1758 in the passage translated in quot. 1770)] now rare = rhodochrosite n.
ΚΠ
1770 G. von Engeström & E. M. da Costa tr. A. F. Cronstedt Ess. Syst. Mineral. i. 124 Red manganese is said to be found in Piedmont.
1810 J. Murray Elements Chem. II. vii. iii. 259 Oxide of manganese,..combined with carbonic acid, has been considered as the basis of what is named Red Manganese Ore.
1870 H. Medlock tr. F. Schoedler Bk. Nature (Amer. ed.) 344 Sulphide of Manganese,..Silicate of Manganese, Carbonate of Manganese, or Red Manganese, and many other minerals of this family, have not received any application in the arts.
1951 S. M. Schwarz Labor in Soviet Union iv. 181 The red manganese mines of Krivoi-Rog.
extracted from redadj.n.adv.
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