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andalusite
[ an-dl-oo-sahyt ]
/ ˌæn dlˈu saɪt /
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noun Mineralogy.
an orthorhombic form of aluminum silicate, Al2SiO5, found in schistose rocks.
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Words nearby andalusite
ancylostomiasis, ancyroid, and, and all, Andalusia, andalusite, Andaman, Andaman and Nicobar Islands, Andamanese, Andaman Islands, Andaman Sea
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use andalusite in a sentence
In mica-gneisses sillimanite, kyanite, andalusite and garnet may occur.
British Dictionary definitions for andalusite
andalusite
/ (ˌændəˈluːsaɪt) /
noun
a grey, pink, or brown hard mineral consisting of aluminium silicate in orthorhombic crystalline form. It occurs in metamorphic rocks and is used as a refractory and as a gemstone. Formula: Al 2 SiO 5
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Scientific definitions for andalusite
andalusite
[ ăn′də-lōō′sīt′ ]
A hard, grayish white to pinkish brown orthorhombic mineral. Andalusite occurs as nearly square prisms, often with cross-shaped cross sections, in metamorphic rocks. It is a polymorph of kyanite and sillimanite, but forms at shallower depths than they do, and at higher temperatures than kyanite and lower temperatures than sillimanite. Chemical formula: Al2SiO5.
The American Heritage® Science Dictionary
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