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cat's-eye quartz


Having a changeable luster.
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.


1. having changeable lustre; twinkling
2. (Jewellery) (of a gem, esp a cabochon) displaying a band of light reflected off inclusions of other minerals
(Jewellery) a gemstone with a changeable lustre, such as a cat's eye
[C18: from French, from chatoyer to gleam like a cat's eyes, from chat cat1]
chaˈtoyancy, chaˈtoyance n


(ʃəˈtɔɪ ənt)

1. changing in luster or color: chatoyant silk.
2. (of a gemstone) reflecting a single streak of light when cut in a cabochon.
3. a chatoyant gemstone, as a cat's-eye.
[1790–1800; < French, present participle of chatoyer to change luster like a cat's eye, v. derivative of chat cat]
cha•toy′ance, cha•toy′an•cy, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.chatoyant - varying in color when seen in different lights or from different angles; "changeable taffeta"; "chatoyant (or shot) silk"; "a dragonfly hovered, vibrating and iridescent"
colorful, colourful - having striking color; "colorful autumn leaves"
References in periodicals archive ?
Suited to the most sumptuous interiors, Chatoyance combines a new dyeing technique with an extremely soft and smooth cotton velvet in a perfect balance of tradition and innovation.
It's not too dark, not too light--it has a lot of what I call in-between color and character and also chatoyance (having a changeable luster or color)," he added.
16) The jewel-eye or cat's eye is linked with the optical effect of chatoyance, the reflecting property in gemstones.