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An alexandrite cat's eye is a chrysoberyl cat's eye that changes color. "Milk and honey" is a term commonly used to describe the color of the best cat's eyes. The effect refers to the sharp milky ray of white light normally crossing the cabochon as a center line along its length and overlying the honey-colored background.
Their inclusions of undissolved flux can look like inclusions in natural chrysoberyl. However, layers of dust-like particles parallel to the seed plate, and strong banding or growth lines may also be apparent. [a] The Inamori synthetic alexandrite had a cat's eye variety, which showed a distinct color change. The eye was broad and of moderate ...
Chatoyancy is caused by either the presence of fibrous structures within the material, such as in tiger's eye quartz, or by fibrous inclusions and cavities, as seen in cat's eye chrysoberyl. In cat's eye chrysoberyl, the chatoyant effect is caused by the presence of rutile, composed mostly of titanium dioxide, which aligns perpendicularly to ...
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
The inclusions can alternatively produce a cat's eye effect if the girdle plane of the cabochon is oriented parallel to the crystal's c-axis rather than perpendicular to it. To get a cat's eye, the planes of exsolved inclusions must be extremely uniform and tightly packed.
Shoko invites Seigi to a mineral show and asks for his number. A young boy, Hajime, brings a gem to the shop Richard identifies as a Chrysoberyl Cat’s Eye, and asks to purchase a second one. Richard fetches several made from Apatite and Tourmaline and explains how cat’s eyes contain Rutile, which creates the pattern. Hajime rejects them for ...
Polished moonstones often display chatoyancy ("cat's eye" effect), where a luminous streak appears through the stone. Asterism is rare and produces four-legged stars. [1]
Tiger's eye (also called tiger eye) is a chatoyant gemstone that is usually a metamorphic rock with a golden to red-brown colour and a silky lustre.As members of the quartz group, tiger's eye and the related blue-coloured mineral hawk's eye gain their silky, lustrous appearance from the parallel intergrowth of quartz crystals and altered amphibole fibres that have mostly turned into limonite.