harzburgiten.
/ˈhɑːtsbəːɡʌɪt/ Geology.
A rock of the peridotite group consisting basically of orthopyroxene and olivine.
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the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > plutonic rocks > peridotites
wehrlite1861
harrisite1865
peridotite1882
cortlandtite1886
harzburgite1890
koswite1901
1890 Mineral. Mag. 9 41 The typical norite has 49·23 per cent. of silica,..the well-known ‘schillerfels’ or bastite-serpentine-rock (Harzburgite of Rosenbusch) 42·36.
1922 Mineral. Abstr. I. 396 The rocks of Mansjö Mtn. (611/ 2°N., 151/ 3°E.), Sweden, include crystalline lime~stone and gneiss with intruded amphibolites and later harzburgite and eulysite.
1924 Trans. Geol. Soc. S. Afr. 26 14 The recognisable harzburgites exhibit fairly considerable differences in composition and grain.
1965 G. J. Williams Econ. Geol. N.Z. x. 149/1 Hutton (1942) identified chromite grains in dunite-serpentinite and harzburgite-serpentinite in a tributary of Gentle Annie Creek in western Otago.
1970 Nature 28 Mar. 1227/2 Most of the volcanics were basic, but during the upper Cretaceous ultrabasics (harzburgite, lherzolite, dunite and anorthosite) were intruded.
This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2019).
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n.1890