from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A bluish-green to colorless mineral, Al2SiO5, used as a refractory.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a blue neosilicate mineral, Al2SiO5, found in metamorphic rocks
from the GNU version of the Collaborative International Dictionary of English
- n. See cyanite.
from The Century Dictionary and Cyclopedia
- n. See cyanite.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a grey or greenish-blue mineral consisting of aluminum silicate in crystalline form; occurs in metaphoric rock, used as a refractory
My test car came in a remarkably bright hue called kyanite blue.
Copper wire strung on a copper hoop, with all manner of space-station debris in glass, pearls, kyanite, and bismuth.
Relative to one another, kyanite forms in a lower temperature/higher pressure environment; andalusite forms in a lower temperature/lower pressure environment, and sillimanite forms in a higher temperature/higher pressure environment.
For refractory purposes, high-alumina materials, fire clays, and a product called synthetic mullite (produced in the United States and elsewhere), can be used in place of kyanite and its related minerals.
There are substantial deposits of kyanite in the United States.
Gneisses in Southern California also have significant kyanite resources.
France and India also produce andalusite and kyanite, respectively.
As a result, more than half of the kyanite consumed is used in refractories for the production of steel.
On the west of the second range we have great masses of kyanite or disthene, and on the flanks of the third and fourth a great deal of specular iron ore which is magnetic, and containing a very large percentage of the metal.
Silimanite is found mainly in India while andalusite and kyanite are more widespread.
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