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单词 magnochromite
释义

magnochromiten.

Brit. /ˌmaɡnəʊˈkrəʊmʌɪt/, U.S. /ˈˌmæɡnoʊˈˌkroʊmaɪt/
Origin: A borrowing from German. Etymon: German Magnochromit.
Etymology: < German Magnochromit (G. M. Bock 1868) < Magn- (in Magnesium magnesium n.) + -o- -o- connective + Chromit chromite n. Compare German Magnoferrit s.v. magnesioferrite n.
Mineralogy. Now historical.
= magnesiochromite n. Also: a magnesiochromite containing no iron, MgCr2O4.
ΘΚΠ
the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > spinel group AB2 O4 > others
picotite1814
franklinite1820
hausmannite1831
hercynite1849
jacobsite1869
hetaerolite1877
trippkeite1881
sapphirine1883
water-spinel1883
manganomagnetite1890
chrome-spinel1892
magnesiochromite1892
magnochromite1892
picrochromite1920
trevorite1921
ulvöspinel1947
taaffeite1951
nickel spinel1961
1892 E. S. Dana J. D. Dana's Syst. Mineral. (ed. 6) 228 Magnochromite,..a magnesian variety of chromite from Grochau, Silesia. Analysis... Cr2O3 40.78, Al2O3 29.92, FeO 15.30, MgO 14.00 = 100.
1913 Mineral. Mag. 16 364 Magnesiochromite.., the same as magnochromite... A variety of chromite containing magnesium.
1929 Amer. Mineralogist 14 355 The study of the analyses indicates the probable presence of a pure magnesium chromite to which the name magnochromite might be given to differentiate it from the chromite sub-species, magnesiochromite.
1993 A. M. Clark Hey's Mineral Index (ed. 3) 422/1 Magnochromite (of Bock), syn. of magnesiochromite (of Bock).
This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).
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n.1892
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