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chiastolite

 - 2 dictionary results

chi⋅as⋅to⋅lite

[kahy-as-tl-ahyt]
–noun
a variety of the mineral andalusite having cruciform carbonaceous inclusions.

Origin:
1795–1805; alter. of chiastolith (see -lite ), equiv. to Gk chiastó(s) set crosswise (see chiasma ) + -lith
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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chi·as·to·lite   (kī-ās'tə-līt')   
n.  A mineral variety of andalusite with carbonaceous impurities regularly arranged along the longer axis of the crystal.

[From Greek khīastos, crossed, past participle of khīazein, to mark with an X; see chiasma.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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