magnetoplumbiten.
/maɡˌniːtəʊˈplʌmbʌɪt/, U.S. /mæɡˈˌnɛdoʊˈˌpləmbaɪt/, /mæɡˈˌnidoʊˈˌpləmbaɪt/ Mineralogy.
A strongly magnetic greyish black oxide of manganese, lead, and ferric iron occurring as acute dipyramidal crystals of the trigonal system.
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the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > other oxides > oxides of two plus elements
lithiophorite1871
baddeleyite1892
brazilite1893
strüverite1907
katoptrite1917
magnetoplumbite1926
nigerite1946
1926 Chem. Abstr. 20 1194 (heading) A new oxide mineral from Långban, magnetoplumbite.
1944 C. Palache et al. Dana's Syst. Mineral. (ed. 7) I. 728 Adelsköld,..(1938), gives C6/mmc as the space group of an artificial material supposedly the same as magnetoplumbite...The supposed composition PbFe12O19, by analogy with so-called β-alumina, proposed by Adelsköld (1938) is not indicated by analysis.
1968 I. Kostov Mineral. ii. iv. 259 Magnetoplumbite has a perfect {0001} cleavage.
1994 European Jrnl. Mineral. 6 713/2 In the Jakobsberg sample, magnetoplumbite occurs as subhedral grains up to 0.5 mm enclosed by melanotekite poikiloblasts.
This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).
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n.1926