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fayalite

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fay⋅al⋅ite

[fey-uh-lahyt, fahy-ah-lahyt]
–noun Mineralogy.
the iron end member of the olivine group, Fe2SiO4.

Origin:
1835–45; named after Fayal; see -ite 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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fay·a·lite   (fā'ə-līt')   
n.  A yellowish to black mineral, Fe2SiO4, of the olivine group.

[German Fayalit, from Fayal, Faial.]
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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Science Dictionary
fayalite   (fā'ə-līt')  Pronunciation Key 
See under olivine.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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