Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A light-colored igneous rock consisting essentially of alkali feldspar.
from The Century Dictionary.
- noun A volcanic rock exhibiting a characteristic roughness when handled.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Geol.) An igneous rock, usually light gray in color and breaking with a rough surface. It consists chiefly of orthoclase feldspar with sometimes hornblende and mica.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geology, mineralogy A
pale igneous rock consisting mostly ofpotassium feldspar andplagioclase .
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The +Puy-de-Dome+ is 4806 ft. above the level of the sea, has no crater, and is covered with a long tufted grass, with here and there a rough spongy rock cropping out, of volcanic origin, and called trachyte, of which the variety found here, and almost here alone, has been named domite.
The South of France—East Half C. B. Black
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Jackson Slater lowered himself over the crumbling rim of the volcanic plug, then dropped into the cooler, shadowy dimness of a rust-colored soda trachyte rock tube.
Black Magic Cherry Adair 2010
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Jackson Slater lowered himself over the crumbling rim of the volcanic plug, then dropped into the cooler, shadowy dimness of a rust-colored soda trachyte rock tube.
Black Magic Cherry Adair 2010
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Jackson Slater lowered himself over the crumbling rim of the volcanic plug, then dropped into the cooler, shadowy dimness of a rust-colored soda trachyte rock tube.
Black Magic Cherry Adair 2010
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About 55 statues are made of other stone – red scoria, basalt, or trachyte – and are smaller than the average size of 5 m.
The Eight Wonder of the World – Easter Island | Impact Lab 2007
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Often, where the water flows over beds of dark grey basalt, masses of trachyte, closely resembling syenite, have formed “potholes,” and by mutual action have been worn to pebbles.
The Hawaiian Archipelago Isabella Lucy 2004
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He brought with him a hard white stone much resembling trachyte, and fragments of fine green jasper.
The Land of Midian 2003
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Presently the quartz made way for long lines and broad patches of a yellow-white, heat-altered clay, often revetted with iron, and passably aping the nobler rock: from one reef I picked up what appeared to be trachyte, white like that of Shaghab.
The Land of Midian 2003
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The rugged peaks of the trachyte rocks presented faint outlines on the eastern horizon; at times a few patches of snow, concentrating the vague light, glittered upon the slopes of the distant mountains; certain peaks, boldly uprising, passed through the grey clouds, and reappeared above the moving mists, like breakers emerging in the heavens.
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To the conglomerate and trachyte succeeded black basalt, the first dispread in layers full of bubbles, the latter forming regular prisms, placed like a colonnade supporting the spring of the immense vault, an admirable specimen of natural architecture.
chained_bear commented on the word trachyte
"'...where the stream can be crossed as it flows over an uncomfortable bed of shattered obsidian and trachyte, that I met Mr Butcher, who agrees that the island is obviously volcanic...'"
--Patrick O'Brian, The Far Side of the World, 380
February 23, 2008