trachyte

American  

[tray-kahyt, trak-ahyt] / ˈtreɪ kaɪt, ˈtræk aɪt /

noun

1. a fine-grained volcanic rock consisting essentially of alkali feldspar and one or more subordinate minerals, as hornblende or mica: the extrusive equivalent of syenite.

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trachyte British  

/ ˈtreɪkaɪt, ˈtræ-, ˈtreɪ- /

noun

1. a light-coloured fine-grained volcanic rock of rough texture consisting of feldspars with small amounts of pyroxene or amphibole

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trachyte Scientific  

/ trā′kīt′,trăk′īt′ /

1. A light-colored, fine-grained igneous rock consisting primarily of alkali feldspar together with some mafic minerals, especially hornblende. Unlike most igneous rocks, trachyte has little or no quartz. Trachyte is the fine-grained equivalent of syenite.

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Other Word Forms

• trachytic
  adjective
• trachytoid
  adjective

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Etymology

Origin of trachyte

1815–25; < French < Greek trāchýtēs roughness, equivalent to trāchý ( s ) rough + -tēs noun suffix

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Example Sentences

See Examples For:

trachyte

Now, after years of protests and problems, the city has decided to replace the translucent glass with less slippery — and less glamorous — trachyte stone.

From New York Times ● Jan. 2, 2022

Indeed, the nature of the building has doubtless obeyed the character of the stone, which does not lend itself to careful cutting and carving like the easily-worked trachyte of Mitla.

From Mexico Its Ancient and Modern Civilisation, History, Political Conditions, Topography, Natural Resources, Industries and General Development by Martin Hume

On the summits of the hills the granite has a rough trachytic appearance, but does not pass into true trachyte.

From The Voyage of the Vega round Asia and Europe, Volume I and Volume II by Alexander Leslie

There are numerous varieties of lava, such as basalt, obsidian, pitchstone, pearlstone, trachyte, &c.; some are heavy compact rocks, others are light and porous.

From Geology by James Geikie

Jasper abounds in the trachyte and dolomite, and large blocks, of beautiful variety, are found in some districts.

From Rambles in the Islands of Corsica and Sardinia with Notices of their History, Antiquities, and Present Condition. by Thomas Forester

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