单词 | picroilmenite |
释义 | > as lemmaspicroilmenite picroilmenite n. Brit. , U.S. [after German Pikroilmenit (E. Hussak 1895, in Min. u. Petrogr. Mittheilungen 14 408)] Mineralogy a magnesian variety of ilmenite, (Mg,Fe)TiO3.ΘΚΠ the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > corundum group A2 03 > ilmenite menaccanite1792 iserine1805 menacanea1806 ilmenite1827 iserite1868 picroilmenite1900 1900 Mineral. Mag. 12 389 Picroilmenite... The same as picrotitanite, a variety of ilmenite rich in magnesium. 1972 Mineral. Abstr. 23 338/1 Picroilmenite occurs, associated with diamond, in the kimberlites and in the Carboniferous, Jurassic, and Cretaceous formations [in the Anabar area, western Yakutia]. 2000 Internat. Geol. Rev. 42 758 These heterogeneities are mainly caused by the presence of sigmoidal oriented lamellae of ilmenite, picroilmenite (geikielite), and corundum. < as lemmas |
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