phonoliten.
/ˈfəʊnəlʌɪt/, U.S. /ˈfoʊnəˌlaɪt/ Geology.
Originally: a fine-grained igneous rock which made a ringing sound when struck; clinkstone. Now: any of a group of fine-grained, often porphyritic, volcanic rocks consisting of alkali feldspar and feldspathoids (usually nepheline), together with accessory sodium-rich amphiboles and pyroxenes.
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the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > trap > basalt > clinkstone
klingstone1806
clinkstone1811
phonolite1811
clink-basalt1818
phonolith1854
1811 J. Black tr. A. von Humboldt Polit. Ess. New Spain III. xi. 131 A porphyry of which the basis is somewhat a kin to klingstein (phonolite).
1831 H. T. De la Beche Geol. Man. iv. 246 Rolled masses of trachyte, phonolite, basalt, or volcanic cinders.
1868 J. D. Dana Syst. Mineral. (ed. 5) 359 Phonolyte (or clinkstone), a compact grayish rock, often containing crystals of glassy feldspar, and having a zeolite in the base along with orthoclase.
1905 Geogr. Jrnl. 25 375 Phonolites were found in several localities on the islands around Winter Quarters.
1972 Nature 17 Mar. 106/1 Suites of anorogenic lava come to vary chemically from basalt and basanite, through intermediate lavas, to rhyolite, trachyte and phonolite.
1996 Independent on Sunday 23 June (Review Suppl.) 63/2 We..combed the shore for souvenir phonolites, the island's unusual spotty flower-stones of volcanic rock.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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