单词 | ferricalcite |
释义 | ferricalciten. Geology. Now rare. A form of limestone containing a high proportion of iron, formerly occasionally misidentified as cerite (cerite n.1 a). ΘΚΠ the world > the earth > minerals > types of mineral > silicates > miscellaneous silicates > [noun] > cerite ferricalcite1794 cerite1805 ochroite1852 1794 R. Kirwan Elements Mineral. (ed. 2) I. 110 Species mixed with a notable proportion of iron, ferricalcites. 1841 C. Davy Architect, Engineer, & Operative Builder's Constructive Man. (new ed.) iv. 106 Below these an ash gray firm-grained stratum..seems to contain nearly as much iron as the ferri-calcite of Kirwan. 1887 T. Egleston Catal. Minerals & Synonyms (Bull. U.S. Nat. Mus. No. 33) 40/2 Cerite,..cerium silicate; ferricalcite. 1915 Rev. Mining Operations S. Austral. No. 22. 40 A large formation, 8ft. to 10ft. wide, is exposed, consisting chiefly of ferricalcite and ironstone. This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022). < n.1794 |
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