单词 | manganolite |
释义 | manganoliten. Mineralogy. 1. Mineralogy. = rhodonite n. Now historical. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > inosilicates single chain > [noun] > pyroxenoid > rhodonite rhodonite1823 fowlerite1832 mangan-amphibole1861 manganolite1885 1885 Cassell's Encycl. Dict. IV. ii Manganolite, the same as Rhodonite. 1993 A. M. Clark Hey's Mineral Index (ed. 3) 431/2 Manganolite. 2. Geology. Any rock composed predominantly of manganese minerals. ΘΚΠ the world > the earth > minerals > ore > [noun] > metal ore > manganese ore wad1783 asbolan1837 groroilite1844 manganolite1893 1893 M. E. Wadsworth in Rep. State Board Michigan Geol. Surv. 1891 & 1892 93 (table) Manganolite. Unconsolidated mineralogical varieties: Wad. Consolidated structural varieties: Bog manganese or Manganesite. 1972 Gloss. Geol. (Amer. Geol. Inst.) 428/2 Manganolite, a general term for rocks composed of manganese minerals esp. manganese oxides such as wad and psilomelane. This entry has been updated (OED Third Edition, September 2000; most recently modified version published online March 2022). < n.1885 |
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