vogesiten.
/ˈvəʊdʒɪzʌɪt/ Geology.
A lamprophyre consisting essentially of phenocrysts of hornblende (or augite) in a groundmass containing potash feldspar.
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the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > porphyrite rock > varieties of
red rock1721
oriental verd-antique1852
kersanton1862
kersantite1868
uralite-porphyry1868
monchiquite1891
vogesite1891
camptonite1895
hedrumite1896
wyomingite1897
spessartite1908
rhyodacite1913
rhyolite1932
1891 F. H. Hatch Introd. Stud. Petrol.: Igneous Rocks v. 97 A second type of syenitic lamprophyre, containing hornblende instead of mica, is termed vogesite by Rosenbusch.
1937 A. Johannsen Descr. Petrogr. Igneous Rocks III. 37 The vogesites are greenish, grayish, or black melanocratic rocks when fresh, and reddish or brownish when weathered.
1976 Nature 5 Aug. 462/2 The vogesite lava is composed of approximately 85–90% olivine and augite.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2021).
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n.1891