cymophane


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Related to cymophane: chrysoberyl, alexandrite

cy·mo·phane

 (sī′mə-fān′)
n.
A variety of chrysoberyl having a shimmering luster and microscopic, needlelike inclusions that reflect a streak of light.

[French : Greek kūma, wave, cyma; see cyma + Greek -phanēs, appearing; see -phane.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cymophane

(ˈsaɪməˌfeɪn)
n
(Minerals) a yellow or green opalescent variety of chrysoberyl
[C19: from Greek kuma wave, undulation + -phane]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

chrys•o•ber•yl

(ˈkrɪs əˌbɛr əl)

n.
a green or yellow crystalline mineral, beryllium aluminate, BeAl2O4, sometimes used as a gem.
[1350–1400; Middle English < Latin chrȳsoberyllus < Greek chrȳsobḗryllos; see chryso-, beryl]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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He would often spend a whole day settling and resettling in their cases the various stones that be had collected, such as the olive-green chrysoberyl that turns red by lamplight, the cymophane with its wirelike line of silver, the pistachio-coloured peridot, rose-pink and wine-yellow topazes, carbuncles of fiery scarlet with tremulous, four-rayed stars, flame-red cinnamon-stones, orange and violet spinels, and amethysts with their alternate layers of ruby and sapphire.