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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.
Boa constrictor, boa constrictor or red-tailed boa Boa constrictor constrictor, red-tailed boa constrictor or red-tailed boa; Boa constrictor longicauda, long-tailed boa constrictor or long-tailed boa; Boa constrictor occidentalis, Argentine boa constrictor or Argentine boa (also known locally as ampalagua, lampalagua or boa de las vizcacheras) [3]
Gemstones of the World revised 5th edition, 2013 by Walter Schumann ISBN 978-1454909538 Smithsonian Handbook: Gemstones by Cally Hall, 2nd ed. 2002 ISBN 978-0789489852 v
Citrine “A powerful gemstone crystal in a range of deep yellows, oranges, and yellow-cream-white, the citrine gemstone is said to bring abundance and wealth into one’s life,” Salzer says.
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 ...
The boa constrictor (scientific name also Boa constrictor), also known as the common boa, is a species of large, non-venomous, heavy-bodied snake that is frequently kept and bred in captivity. [5] [6] The boa constrictor is a member of the family Boidae. The species is native to tropical South America. A staple of private collections and public ...
Boa imperator (or Boa constrictor imperator in common usage) is a large and heavy-bodied arboreal species [4] of nonvenomous, constrictor-type snake in the family Boidae.One of the most popular pet snakes (often bred in captivity) in the world, B. imperator's native range is from Mexico through Central and South America (west of the Andes Mountains, mainly in Colombia), with local populations ...
Boa constrictor or red-tailed boa: 3: South America (except Chile and a small part of the northwest) Boa imperator: Central American boa, northern boa or Colombian boa: 1: Mexico, Central America and a small part of northwestern South America Boa nebulosa: Dominican boa [5] 0: Dominica: Boa orophias: St. Lucia boa or San Lucia boa [6] 0: Saint ...