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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.
Pages in category "Eye color" ... Tiger eye; U. Uveal melanoma; W. Wolfflin nodule This page was last edited on 25 January 2020, at 23:50 (UTC). Text is available ...
The total number of genes that contribute to eye color is unknown, but there are a few likely candidates. A study in Rotterdam (2009) found that it was possible to predict eye color with more than 90% accuracy for brown and blue using just six SNPs. [16] [17] In humans, eye color is a highly sexually dimorphic trait. [18]
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 ...
A horse showing the characteristic tiger eye. Tiger eye or goat eye is a gene causing diluted eye color in horses. There are two variants, Tiger-eye 1 (TE1) and Tiger-eye 2 (TE2), which are both recessive. [1] Horses displaying tiger eye typically have a yellow, orange, or amber iris. Tiger eye has only been found in Puerto Rican Paso Fino horses.
Driver's education, driver education, driving education, driver's training, driver's ed, driving tuition or driving lessons is a formal class or program that prepares a new driver to obtain a learner's permit or driver's license. The formal class program may also prepare existing license holders for an overseas license conversion or medical ...
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These signs mark school zones (in which lower speed limits may be in place), student crossings, crossing guards or signals ahead. In the U.S. and Canada, pentagon-shaped signs are used in place of the usual diamond-shaped signs. The shape of the U.S. school zone resembles a one-room schoolhouse and is the only U.S. sign shaped this way. Some ...