[bas-uh-nahyt, baz-]
noun Petrography.
a basaltic rock composed chiefly of plagioclase, olivine, and augite.

1745–55; < Latin basanītēs; see basalt Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
basanite (ˈbæsəˌnaɪt)
a black basaltic rock containing plagioclase, augite, olivine, and nepheline, leucite, or analcite, formerly used as a touchstone
[C18: see basalt]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Britannica


extrusive igneous rock that contains calcium-rich plagioclase feldspar (usually labradorite or bytownite), feldspathoid (usually nepheline or leucite), olivine, and pyroxene (titanaugite). Basanite grades into tephrite, which contains no olivine.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
The suite of basanite clasts is only slightly larger with four samples.
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