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anorthosite
[ an-awr-thuh-sahyt ]
noun
, Petrology.
- a granular plutonic rock composed largely of labradorite or a more calcic feldspar.
anorthosite
/ ænˈɔːθəˌsaɪt /
noun
- a coarse-grained plutonic igneous rock consisting almost entirely of plagioclase feldspar
anorthosite
/ ăn-ôr′thə-sīt′ /
- An igneous rock consisting almost entirely of plagioclase feldspar, especially the labradorite variety. Anorthosites have been identified among rock samples collected from the Moon.
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Other Words From
- an·or·tho·sit·ic [an-aw-th, uh, -, sit, -ik], adjective
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Word History and Origins
Origin of anorthosite1
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Word History and Origins
Origin of anorthosite1
C19: from French anorthose (see an- , ortho- ) + -ite 1
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Example Sentences
In Canada great portions of the eastern portion of the Dominion are formed of gabbros, norite, anorthosite and allied rock types.
From Project Gutenberg
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