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syenite
[ sahy-uh-nahyt ]
noun
- a granular igneous rock consisting chiefly of orthoclase and oligoclase with hornblende, biotite, or augite.
syenite
/ ˌsaɪəˈnɪtɪk; ˈsaɪəˌnaɪt /
noun
- a light-coloured coarse-grained plutonic igneous rock consisting of feldspars with hornblende or biotite
syenite
/ sī′ə-nīt′ /
- A light-colored, coarse-grained igneous rock consisting primarily of alkali feldspar together with some mafic minerals, especially hornblende. Unlike most igneous rocks, syenite has little or no quartz. It is believed to form from the cooling of magma that forms at very high temperatures and at great depths. It is the coarse-grained equivalent of trachyte.
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Derived Forms
- syenitic, adjective
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Other Words From
- sy·e·nit·ic [sahy-, uh, -, nit, -ik], adjective
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Word History and Origins
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Word History and Origins
Origin of syenite1
C18: from French syénite, from Latin syēnītēs lapis stone from Syene (Aswan), where it was originally quarried
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Example Sentences
Syenite is a crystalline compound of a potash-felspar and hornblende, and quartz is frequently present.
From Project Gutenberg
The obelisks of the Pharaohs are made of red granite called Syenite.
From Project Gutenberg
The Syenite granite was very hard, and capable of taking a high polish.
From Project Gutenberg
Of those standing, twenty-seven are made of Syenite granite.
From Project Gutenberg
In the neighbourhood are the renowned quarries of red granite called Syenite or Syenitic stone.
From Project Gutenberg
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