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单词 rhodochrosite
释义

rhodochrositen.

Brit. /ˌrəʊdə(ʊ)ˈkrəʊsʌɪt/, U.S. /ˌroʊdəˈkroʊsaɪt/
Origin: A borrowing from German. Etymon: German Rhodochrosit.
Etymology: < German Rhodochrosit ( J. F. L. Hausmann Handbuch der Mineralogie (1813) 1081) < Hellenistic Greek ῥοδόχρως rose-coloured ( < ancient Greek ῥοδο- rhodo- comb. form + χρώς colour < the same base as χρῶμα colour: see chrome n.) + German -it -ite suffix1.
Mineralogy.
A manganese-containing mineral of the calcite group occurring as pink, red, orange, brown, or grey crystals. Also called dialogite, manganese spar.Rhodochrosite consists of manganese carbonate, MnCO3. Crystal system: trigonal.
ΚΠ
1823 H. J. Brooke Familiar Introd. Crystallogr. 480 Manganese..compact; Rhodochrosite.
1884 E. S. Dana Dana's Syst. Mineral. (ed. 5) App. III. 103 A variety of rhodochrosite has been called Manganosiderite by Bayer.
1913 Jrnl. Industr. & Engin. Chem. 5 560/2 The crystallized carbonate, that is, the mineral rhodochrosite, reacts slowly.
2002 High Country News 1 Apr. 20/2 It now produces gem-quality rhodochrosite crystals for collectors and jewelers.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).
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n.1823
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