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Cat's eye became significantly more popular by the end of the 19th century when the Duke of Connaught gave a ring with a cat's eye as an engagement token; this was sufficient to make the stone more popular and increase its value greatly. Until that time, cat's eye had predominantly been present in gem and mineral collections.
Tiger's eye Tiger's eye. In gemology, chatoyancy (/ ʃ ə ˈ t ɔɪ. ən s i / shə-TOY-ən-see), also called chatoyance or the cat's eye effect, [1] is an optical reflectance effect seen in certain gemstones, woods, and carbon fiber. Coined from the French œil de chat, meaning 'cat's eye'. The chatoyant effect is typically characterized by ...
Cat eye glasses, a style of horn-rimmed glasses designed for women; Cat's eye (toy), a kind of toy marble; Cat's Eye (cocktail), a gin-based cocktail; Cat's eye (road), a type of road marker using retroreflectors; Cat eye tube, an electron tube used as a visual indicator
A gemstone (also called a fine gem, jewel, precious stone, semiprecious stone, or simply gem) is a piece of mineral crystal which, ... peridot and cat's eye ...
Another gem variety is the chatoyant form known as cat's-eye actinolite. This stone is translucent to opaque, and green to yellowish green color. This variety has had the misnomer jade cat's-eye. Transparent actinolite is rare and is faceted for gem collectors. Major sources for these forms of actinolite are Taiwan and Canada.
The Inamori synthetic alexandrite had a cat's eye variety, which showed a distinct color change. The eye was broad and of moderate intensity. Specimens were a dark greyish-green with slightly purple overtones under fluorescent lighting. The eye was slightly greenish-bluish-white and the stones were dull and oily.
Apatite is infrequently used as a gemstone. Transparent stones of clean color have been faceted, and chatoyant specimens have been cabochon -cut. [ 3 ] Chatoyant stones are known as cat's-eye apatite , [ 3 ] transparent green stones are known as asparagus stone , [ 3 ] and blue stones have been called moroxite . [ 35 ]
Cat's Eye Nephrite: Also known as Cat's Eye Jade or Taiwan Cat's Eye, this type of nephrite exhibits the cat's eye effect. It is sometimes referred to as Cat's Eye Stone in the market. The crystal grain sizes of Cat's Eye Nephrite can sometimes exceed 1000 micrometers.