cat's-eye


cat's–eye

noun \ˈkat-ˌsī\

: a jewel that has a pale stripe running down its middle which makes it look like the eye of a cat

: a marble with round circles that look like eyes

plural cat's–eyes

Full Definition of CAT'S-EYE

1
:  any of various gems (as a chrysoberyl or a chalcedony) exhibiting opalescent reflections from within
2
:  a marble with eyelike concentric circles

First Known Use of CAT'S-EYE

circa 1599

cat's-eye

noun    (Concise Encyclopedia)

Chrysoberyl cat's-eye with yellow banding on a brown stone—John H. Gerard

Any of several gemstones that display a luminous band reminiscent of the eye of a cat. Grayish green or greenish quartz cat's-eye is the most common type; although it comes from the Orient, it is often called occidental cat's-eye to differentiate it from the rarer, and more valuable, precious or oriental cat's-eye, which is a greenish variety of chrysoberyl. Crocidolite cat's-eye (African cat's-eye) is more commonly known as tigereye. Corundum cat's-eye is an imperfect star sapphire or ruby in which the star is reduced to a luminous zone.

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