melanosideriten.
/ˌmɛlənəʊˈsɪdərʌɪt/, U.S. /ˌmɛlənəˈsɪdəˌraɪt/, /ˌmɛlənoʊˈsɪdəˌraɪt/ Mineralogy.
A silicate of aluminium and ferric iron occurring in black vitreous masses.
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the world > the earth > minerals > types of mineral > silicates > miscellaneous silicates > [noun] > aluminium and one other
petalite1808
sapphirine1823
triclasite1835
neolite1854
maconite1873
melanosiderite1875
sapphirite1883
facellite1891
ganophyllite1892
sursassite1928
1875 J. P. Cooke in Proc. Amer. Acad. 10 451 Melanosiderite, a new mineral species from Mineral Hill, Delaware County, Pennsylvania.
1892 E. S. Dana J. D. Dana's Syst. Mineral. (ed. 6) vi. 703 Genth..suggests that melanosiderite is only a variety of an iron hydrate, probably a limonite.
1905 Science 3 Feb. 198/1 Euphyllite.., Melanosiderite.., Roseite..were all discovered by Mr. Jefferis.
1983 Mineral. Mag. 47 86/2 As with synthetic ferrihydrite..melanosiderite decomposes in a KBr pressed disc on heating to 350°C for 6 h.
1993 A. M. Clark Hey's Mineral Index (ed. 3) 443/2 Melanosiderite... Probably a mixture.
This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022).
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n.1875