chatoyant

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chatoyant

[shə′tȯi·ənt]
(mineralogy)
Of a mineral or gemstone, having a changeable luster or color marked by a band of light, resembling the eye of a cat in this respect.
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References in periodicals archive ?
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.
Wuthrich and Weibel (1981) and others have described the manifestation of this phenomenon in chatoyancy and asterism.