hornblenditen.
/ˈhɔːnblɛndʌɪt/ Geology.
A granular rock largely or entirely composed of hornblende.
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the world > the earth > structure of the earth > constituent materials > rock > metamorphic rock > [noun] > other metamorphics
quartzite1823
mica-schist1826
amphibolite1833
hornfels1854
phthanite1854
hornblendite1874
psammite1882
tourmaline-rock1882
tourmaline-schist1882
jasperoid1898
skarn1901
metagabbro1904
metabasite1907
verdite1908
rodingite1911
siallite1933
tonstein1961
greenlandite1981
1874 J. D. Dana Man. Geol. (ed. 2) ii. i. 70 Hornblendyte.—A very tough, granular, crystalline rock, consisting of hornblende, and hardly schistose in structure.
1901 Jrnl. Chem. Soc. 80 ii. 170 Hornblendite from Brandberget, consisting essentially of hornblende.
1930 B. N. Peach & J. Horne Chapters Geol. Scotl. 26 The ultrabasic rocks (pyroxenites, hornblendites) generally form lenticles.
1967 P. J. Wyllie Ultramafic & Related Rocks i. 2/2 Hornblendites vary widely in mineralogy, and various combinations of hornblende, pyroxene, olivine, and biotite are known.
This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2020).
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