chatoyancy


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chatoyant
cat's-eye quartz

cha·toy·ant

 (shə-toi′ənt)
adj.
Having a changeable luster.
n.
A chatoyant stone or gemstone, such as the cat's-eye.

[French, present participle of chatoyer, to shimmer like cats' eyes, from chat, cat, from Vulgar Latin *cattus, perhaps of African origin.]

cha·toy′an·cy n.

chatoyancy

the condition or quality of changing in color or luster depending on the angle of light, especially of a gemstone that reflects a single shaft of light when cut in cabochon form. — chatoyant, adj.
See also: Gems
the condition or quality of changing in color or luster depending on the angle of light, especially of a gemstone that reflects a single shaft of light when cut in cabochon form. — chatoyant, adj.
See also: Light
the condition or quality of changing in color or luster depending on the angle of light, exhibited especially by a gemstone that reflects a single shaft of light when cut in cabochon form. — chatoyant, adj.
See also: Color
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References in periodicals archive ?
I can't think of any other wood that possesses the chatoyancy or range of colors of koa.
Chatoyancy occurs when light reflects from minute, parallel ridges, fibers, or tubes within a transparent material.
Because in those instances, the reflected cat's-eye bands of light were perpendicular to the crocidolite fibers, the scientists conclude that in tiger's-eye the chatoyancy arises from the crocidolite fibers, not the quartz.