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 ?
Rarely, zircon shows chatoyancy, and such gems have been documented from Sri Lanka (Fryer 1983, 1985; Hanni and Weibel, 1988).
I can't think of any other wood that possesses the chatoyancy or range of colors of koa.
For a manganese oxide mineral they are not at all bad-looking, consisting as they do of intergrown, horsetail-shaped aggregates of finely fibrous black crystals which show a kind of chatoyancy as individual horsetails catch ambient light.