CHATOYANTS

Noun

chatoyants

plural of chatoyant

Source: Wiktionary

CHATOYANT

Cha*toy"ant, a. Etym: [F., p. pr. of chatoyer to be chatoyant, fr. chat cat.] (Min.)

Definition: Having a changeable, varying luster, or color, like that of a changeable silk, or oa a cat's eye in the dark.

Cha*toy"ant, n. (Min.)

Definition: A hard stone, as the cat's-eye, which presents on a polished surface, and in the interior, an undulating or wary light.

Source: Webster’s Unabridged Dictionary 1913 Edition