Opaque, asteriated, iridescent, opalescent, or chatoyant stones are usually cut en cabochon.
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The other leading contenders included Ezzoud who had won the International Stakes and beaten Erhaab in the Eclipse, White Muzzle, who had finished second in the race in the previous year, the St Leger Stakes winner Bob's Return and King's Theatre, who had won the Racing Post Trophy in 1993 before finishing second in both the Epsom Derby and the Irish Derby in 1994. The other runners were Chatoyant (Brigadier Gerard Stakes), Foyer (King Edward VII Stakes), Environment Friend (Eclipse Stakes), Wagon Master (Princess of Wales's Stakes) and Urgent Request. Erhaab headed the betting at odds of 7/2 ahead of White Muzzle (9/2), Apple Tree (5/1) and Bob's Return (15/2). King's Theatre, Chatoyant, Chatoyant and Ezzoud were next in the market on 12/1.
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Faceted blue apatite, Brazil Yellow colored apatites Apatite is infrequently used as a gemstone. Transparent stones of clean color have been faceted, and chatoyant specimens have been cabochon-cut. Chatoyant stones are known as cat's-eye apatite, transparent green stones are known as asparagus stone, and blue stones have been called moroxite.Streeter, Edwin W., Precious Stones and Gems 6th edition, George Bell and Sons, London, 1898, p306 If crystals of rutile have grown in the crystal of apatite, in the right light the cut stone displays a cat's-eye effect.
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The stellate masses tend to be chatoyant, meaning they have a varying luster. This chatoyancy can be subtranslucent to opaque. Cholorastrolite is a variety of pumpellyite: . Chlorastrolite was once thought to be an impure variety of prehnite or thomsonite.
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Some forms of actinolite are used as gemstones. One is nephrite, one of the two types of jade (the other being jadeite, a variety of pyroxene). 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.
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Proceedings, 1982. of rutile occur in an orientation parallel to the c-axis, producing a chatoyant effect visible as a single ray of light passing across the crystal. This effect is best seen in gemstones cut in cabochon form perpendicular to the c-axis. The color in yellow chrysoberyl is due to Fe3+ impurities.
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King's Theatre overtook Wagon Master a furlong from the finish and held off the late challenge of White Muzzle to win by one and a quarter lengths, with Wagon Master two and a half lengths back in third. Apple Tree took fourth ahead of Petit Loup, Foyer, Erhaab and the weakening Bob's Return. The last three finishers were Chatoyant, Environment Friend and the early leader Urgent Request.
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The schiller is scattered by inclusions and appears hazy; non-hazy specimens are specially referred to as "milky". Thus, adularescence occurring in non-adularia gemstones is termed differently – the "girasol effect" and opalescence (for opals only) are two such terms. When the schiller forms an indistinct band, it is said to display a chatoyant effect. Only clearly defined bands are referred to as "cat's eyes".
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Tiger's eye Chatoyant minerals display luminous bands, which appear to move as the specimen is rotated. Such minerals are composed of parallel fibers (or contain fibrous voids or inclusions), which reflect light into a direction perpendicular to their orientation, thus forming narrow bands of light. The most famous examples are tiger's eye and cymophane, but the effect may also occur in other minerals such as aquamarine, moonstone and tourmaline.
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Dichroic glass beads incorporate a semitransparent microlayer of metal between two or more layers. Fibre optic glass beads have an eyecatching chatoyant effect across the grain. There are also several ways to fuse many small glass canes together into a multicolored pattern, resulting in millefiori beads or chevron beads (sometimes called "trade beads"). "Furnace glass" beads encase a multicolored core in a transparent exterior layer which is then annealed in a furnace.
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The archetypal asteria is the star sapphire, generally corundum with near uniform impurities which is bluish-grey and milky or opalescent, which when lit has a star of six rays. In the red instance stellate reflection is rarer; the star-ruby occasionally found with the star-sapphire in Sri Lanka is among the most valued of "fancy stones". Other examples are star-topaz and certain prized chatoyant (lit. cat's eye) chrysoberyl stones, particularly of the cymophane (yellow) variety.
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Charoite is strictly massive in nature, and fractures are conchoidal. It has an unusual swirling, fibrous appearance, sometimes chatoyant, and that, along with its intense color, can lead many to believe at first that it is synthetic or enhanced artificially. Though reportedly discovered in the 1940s, it was not known to most of the world until its description in 1978. It is said to be opaque and unattractive when found in the field; a fact that may have contributed to its late recognition.
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For a gemstone to show this effect best it must be cut en cabochon (rounded with a flat base rather than faceted), with the fibers or fibrous structures parallel to the base of the finished gem. The best finished specimens show a single sharply defined band of light that moves across the stone when it is rotated. Chatoyant stones of lesser quality display a banded effect as is typical with cat's-eye varieties of quartz. Faceted stones do not show the effect well.
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Binghamite, Cuyuna North Range, Minnesota, USA Mining in the area uncovered deposits of the stone, but since mining operations were discontinued in the area many years ago the stone has become fairly rare and is sought after by lapidarists and gem collectors. The stone has areas that are highly chatoyant similar to pietersite or tiger's eye. It is a variety of quartz with fibers of goethite or hematite usually in colors of red, gold, and black. The highest quality binghamite compares with top pietersite for color and chatoyancy.
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Stanton wrote the score for an original radio production of The Trial of the Catonsville Nine by Daniel Berrigan, played on WBAI-FM in New York City in 1971. He wrote a two-person play, Chatoyant, in 1977, opening and performing it in the Philadelphia area with music played by Terry Gross on Fresh Air.Fresh Air with Terry Gross, 12/1977 Stanton composed sound and score for an original production of Shakespeare's The Tempest in 1980 (People's Light and Theatre Company, Malvern, Pennsylvania). He would go on to write many independent orchestral pieces, scored for many different instrumental combinations.
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Maroof began his third season in the Lockinge Stakes at Newbury on 13 May and finished fifth of the eleven runners, six lengths behind the winner Emperor Jones. Later that month he was moved up in distance for the Brigadier Gerard Stakes over ten furlongs at Sandown Park Racecourse and finished second to Chatoyant. He was then sent to Ireland for the International Stakes at the Curragh on 26 June. He raced in second behind Alflora before taking the lead a furlong out but was caught in the final stride by the rallying Alflora and beaten a short head.
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It forms an essential constituent of certain alkaline plutonic rocks of the nepheline syenite series, which are typically developed in southern Norway. The color and greasy luster of elaeolite (a name given by M. H. Klaproth 1809, from Greek words for oil [ἔλαίον] and stone [λίθος]; ) are due to the presence of numerous microscopic enclosures of other minerals, possibly augite or hornblende. These enclosures sometimes give rise to a chatoyant effect like that of cats-eye and cymophane; and elaeolite when of a good green or red color and showing a distinct band of light is sometimes cut as a gem-stone with a convex surface.
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Cutting en cabochon (French: "in the manner of a cabochon") is usually applied to opaque gems, while faceting is usually applied to transparent stones. Hardness is also taken into account as softer gemstones with a hardness lower than 7 on the Mohs hardness scale are easily scratched, mainly by silicon dioxide in dust and grit. This would quickly make translucent gems unattractive—instead they are polished as cabochons, making the scratches less evident. In the case of asteriated stones such as star sapphires and chatoyant stones such as cat's eye chrysoberyl, a domed cabochon cut is used to show the star or eye, which would not be visible in a faceted cut.
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Backside view of a violin Flame maple (tiger maple), also known as flamed maple, curly maple, ripple maple, fiddleback or tiger stripe, is a feature of maple in which the growth of the wood fibers is distorted in an undulating chatoyant pattern, producing wavy lines known as "flames". This effect is often mistakenly said to be part of the grain of the wood; it is more accurately called "figure", as the distortion is perpendicular to the grain direction. Prized for its beautiful appearance, it is used frequently in the manufacturing of fine furniture and musical instruments, such as violins, guitars, and bassoons. During the westward expansion of early settlers and explorers into the lands west of the Appalachian Mountains, curly maple was often used for making the stocks used on Kentucky rifles.
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