"dark and white sub-ocular eye-lines, reddish-brown chin and throat with darker streaking, shading on breast to medium to darkish dull brown with narrowly edged dark back and scapulars. They also have pink flesh around the eye with amethyst or purple iridescence on the nape. Amethyst brown dove The amethyst brown dove (""Phapitreron amethystinus"") is a species of bird in the family Columbidae. It is endemic to the Philippines. It occurs on most large islands except Palawan but is generally rather scarce on Luzon and Mindanao and even rarer elsewhere. Its natural habitats are subtropical or tropical moist lowland forests and"
"""lavender"" in a basic purple color chart. The color amethyst is a moderate, transparent violet. Its name is derived from the stone amethyst, a form of quartz. The first recorded use of ""amethyst"" as a color name in English was in 1572. Though the color of natural amethyst varies from purple to yellow, the amethyst color referred to here is the moderate purple color most commonly associated with amethyst stones. There is disagreement as to the cause of the purple color of the amethyst stone. Some believe that the color is due to the presence of manganese, while others have"
"even if the iron concentration is low. Natural amethyst is dichroic in reddish violet and bluish violet, but when heated, turns yellow-orange, yellow-brown, or dark brownish and may resemble citrine, but loses its dichroism, unlike genuine citrine. When partially heated, amethyst can result in ametrine. Amethyst can fade in tone if overexposed to light sources and can be artificially darkened with adequate irradiation. Amethyst was used as a gemstone by the ancient Egyptians and was largely employed in antiquity for intaglio engraved gems. The largest Ancient Egyptian amethyst mines are located at Wadi el-Hudi and those mines may be the"
"suggested that the amethyst color could be from ferric thiocyanate or sulfur found in amethyst stones. Displayed at right is the web color medium purple which is equivalent to ""deep medium violet"" or deep lavender. Displayed at right is the color purple mountain majesty, a Crayola color since 1993. This color may be regarded as a ""medium lavender gray"". This color was the color called ""lavender"" in Crayola crayons before 1958, when Crayola switched to calling the color shown above as ""lavender pink"" as being ""lavender"". See the website ""Lost Crayola Crayon Colors"". Because of that, another name for this"
"of synthetic quartz is used. Treated amethyst is produced by gamma ray, X-ray or electron beam irradiation of clear quartz (rock crystal) which has been first doped with ferric impurities. On exposure to heat, the irradiation effects can be partially cancelled and amethyst generally becomes yellow or even green, and much of the citrine, cairngorm, or yellow quartz of jewelry is said to be merely ""burnt amethyst"". The Greek word ""amethystos"" may be translated as ""not drunken"", from Greek ""a-"", ""not"" + ""methustos"", ""intoxicated"". Amethyst was considered to be a strong antidote against drunkenness, which is why wine goblets were"
"Ametrine Ametrine, also known as trystine or by its trade name as bolivianite, is a naturally occurring variety of quartz. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Almost all commercially available ametrine is mined only in Bolivia. The colour of the zones visible within ametrine are due to differing oxidation states of iron within the crystal. The different oxidation states occur due to there being a temperature gradient across the crystal during its formation. Artificial ametrine can be created by differential heat treatment of amethyst. Legend has it that ametrine was"
"Germany. In the 19th century, the color of amethyst was attributed to the presence of manganese. However, since it can be greatly altered and even discharged by heat, the color was believed by some authorities to be from an organic source. Ferric thiocyanate has been suggested, and sulfur was said to have been detected in the mineral. Synthetic (laboratory-grown) amethyst is produced by a synthesis method called hydrothermal growth, which grows the crystals inside a high-pressure autoclave. Synthetic amethyst is made to imitate the best quality amethyst. Its chemical and physical properties are the same to that of natural amethyst"
"is not primarily defined by carat weight; this is different to most gemstones where the carat weight exponentially increases the value of the stone. The biggest factor in the value of amethyst is the color displayed. The highest grade amethyst (called ""Deep Russian"") is exceptionally rare and therefore, when one is found, its value is dependent on the demand of collectors. It is, however, still orders of magnitude lower than the highest grade sapphires or rubies (padparadscha sapphire or ""pigeon's blood"" ruby). Amethyst Amethyst is a violet variety of quartz. The name comes from the Koine Greek ἀμέθυστος ""amethystos"" from"
"red. This is not true violet, for it does not match the color of a single wavelength shorter than that of blue light. The color's name is derived from the violet flower. Violet and purple look similar, but violet is a spectral color, with its own set of wavelengths on the spectrum of visible light. Purple is a dichromatic color, made by combining blue and red. Amethyst is a notable violet crystal, its colour arising from iron and other trace elements in quartz. In history, violet and purple have long been associated with royalty and majesty. The emperors of Rome"
"lapidary involves correctly cutting the stone to place the color in a way that makes the tone of the finished gem homogeneous. Often, the fact that sometimes only a thin surface layer of violet color is present in the stone or that the color is not homogeneous makes for a difficult cutting. The color of amethyst has been demonstrated to result from substitution by irradiation of trivalent iron (Fe) for silicon in the structure, in the presence of trace elements of large ionic radius, and, to a certain extent, the amethyst color can naturally result from displacement of transition elements"
"with colors such as helio, jade, primrose, azurite and ebony. In the latter of the 1920s there was a shift to transparent colors in light colors. In the 1930s, the company moved to darker colors such as forest, amethyst and royal blue. Towards the end of the 1930s, most of the lines made were done in crystal. One of the darker colors they started to use was the amethyst which they invented and patented (reliable source the granddaughter.) Shortly after closing in 1954, the company was sold to a firm headed by Sidney Albert of Akron, Ohio. The plant reopened"
"then referred to as ametrine. An amethyst is formed when there is iron in the area where it was formed. Blue quartz contains inclusions of fibrous magnesio-riebeckite or crocidolite. Inclusions of the mineral dumortierite within quartz pieces often result in silky-appearing splotches with a blue hue, shades giving off purple and/or grey colors additionally being found. ""Dumortierite quartz"" (sometimes called ""blue quartz"") will sometimes feature contrasting light and dark color zones across the material. Interest in the certain quality forms of blue quartz as a collectible gemstone particularly arises in India and in the United States. Citrine is a variety"
"varieties tend to be macrocrystalline. Chalcedony is a cryptocrystalline form of silica consisting of fine intergrowths of both quartz, and its monoclinic polymorph moganite. Other opaque gemstone varieties of quartz, or mixed rocks including quartz, often including contrasting bands or patterns of color, are agate, carnelian or sard, onyx, heliotrope, and jasper. Amethyst is a form of quartz that ranges from a bright to dark or dull purple color. The world's largest deposits of amethysts can be found in Brazil, Mexico, Uruguay, Russia, France, Namibia and Morocco. Sometimes amethyst and citrine are found growing in the same crystal. It is"
"first introduced to Europe by a conquistador's gifts to the Spanish Queen, after he received a mine in Bolivia as a dowry when he married a princess from the native Ayoreos tribe. Most ametrine in the low price segment can be assumed to stem from synthetic material. Since 1994, a Russian laboratory has perfected the industrial production of bicolored quartz crystals that are later irradiated to bring out the typical ametrine colors. Green-yellow or golden-blue ametrine does not exist naturally. Ametrine Ametrine, also known as trystine or by its trade name as bolivianite, is a naturally occurring variety of quartz."
"are four colours – red, green, yellow, and blue – each represented by a clear gem (red – Carbuncle, green – Heliodor, yellow – Chrysolite, blue – Amethyst), an opaque gem (red – Carnelian/red Jasper, green – green Jasper, yellow – yellow Jasper/yellow Serpentine, blue - Lapis Lazuli), and a striped gem (red – Sardonyx, green – Malachite, yellow – pale golden Agate, blue – sky-blue Agate). The four colours of red, green, yellow, and blue, are the first four colours (apart from black and white) distinguished by languages, and are distinguished in all cultures with at least six colour"
"Amaranth (color) Amaranth is a reddish-rose color that is a representation of the color of the flower of the amaranth plant. The color shown is the color of the red amaranth flower (the color normally considered amaranth), but there are other varieties of amaranth that have other colors of amaranth flowers; these colors are also shown below. The color amaranth is displayed at right. This color is also called ""amaranth red"" to distinguish it from the varying colors of other varieties of the amaranth flower. The color ""amaranth"" is similar to printer's magenta (pigment magenta) (but redder). It is the"
"Apricot (color) Apricot is a light yellowish-orangish-pinkish color that is similar to the color of apricots. However, it is somewhat paler than actual apricots. The etymology of the color apricot (and the fruit): the word comes from the Arabic ""Al-birquq"" (itself from Greek ""berikokon"", ultimately from Latin ""praecoquum""). ""Apricot"" has been in use as a color name since 1851. Displayed at right is the light tone of apricot called ""apricot"" since 1958 in Crayola crayons. Displayed at right the color mellow apricot. This is one of the colors on the British Standards 5252 color list. This color is #06E50 on"
"its variations are not found in classical sources. However, the titan Rhea does present Dionysus with an amethyst stone to preserve the wine-drinker's sanity in historical text. Tibetans consider amethyst sacred to the Buddha and make prayer beads from it. Amethyst is considered the birthstone of February. In the Middle Ages, it was considered a symbol of royalty and used to decorate English regalia. In the Old World, amethyst was considered one of the Cardinal gems, in that it was one of the five gemstones considered precious above all others, until large deposits were found in Brazil. Amethyst is produced"
"base colors include; amethyst, a reddish purple; blue, green, red and amber. These basic colors are then further delineated by shade; depth of color; color combinations such as 'amberina'; color pattern such as 'slag'; special treatments such as 'opalescent' and finally luminescence such as that given off by 'vaseline glass' or 'uranium glass' under ultra violet light (blacklight). Carnival Glass was produced in a wide variety of items, from utilitarian to the purely decorative. Even within groups of items a variety of shapes can be found with further variation in edging and bases as well as different treatments of the"
"of quartz whose color ranges from a pale yellow to brown due to ferric impurities. Natural citrines are rare; most commercial citrines are heat-treated amethysts or smoky quartzes. However, a heat-treated amethyst will have small lines in the crystal, as opposed to a natural citrine's cloudy or smokey appearance. It is nearly impossible to differentiate between cut citrine and yellow topaz visually, but they differ in hardness. Brazil is the leading producer of citrine, with much of its production coming from the state of Rio Grande do Sul. The name is derived from the Latin word ""citrina"" which means ""yellow"""
"often carved from it. In his poem ""L'Amethyste, ou les Amours de Bacchus et d'Amethyste"" (Amethyst or the loves of Bacchus and Amethyste), the French poet Remy Belleau (1528–1577) invented a myth in which Bacchus, the god of intoxication, of wine, and grapes was pursuing a maiden named Amethyste, who refused his affections. Amethyste prayed to the gods to remain chaste, a prayer which the chaste goddess Diana answered, transforming her into a white stone. Humbled by Amethyste's desire to remain chaste, Bacchus poured wine over the stone as an offering, dyeing the crystals purple. Variations of the story include"
"has also been used for the mineral olivine (""peridot"" as a gemstone); that name is no longer used in the gemological nomenclature. Alexandrite, a strongly pleochroic (trichroic) gem, will exhibit emerald green, red and orange-yellow colors depending on viewing direction in partially polarised light. However, its most distinctive property is that it also changes color in artificial (tungsten/halogen) light compared to daylight. The color change from red to green is due to strong absorption of light in a narrow yellow portion of the spectrum, while allowing large bands of more blue-green and red wavelengths to be transmitted. Which of these"
"all colored diamonds, red diamonds are the rarest. The Aurora Pyramid of Hope displays a spectacular array of naturally colored diamonds, including red diamonds. Diamonds occur in a variety of colors—steel gray, white, blue, yellow, orange, red, green, pink to purple, brown, and black. Colored diamonds contain interstitial impurities or structural defects that cause the coloration, pure diamonds are perfectly transparent and colorless. Diamonds are scientifically classed into two main ""types"" and several subtypes, according to the nature of impurities present and how these impurities affect light absorption: Type I diamonds have nitrogen atoms as the main impurity, commonly at"
"but some amethyst will turn green when treated. Currently, almost all prasiolite on the market results from a combination of heat treatment and ionizing radiation. Green quartz is sometimes incorrectly called green amethyst, which is not an acceptable name for the material, the proper terminology being prasiolite. It is actually against Federal Trade Commission Guidelines to call prasiolite ""green amethyst"". Other names for green quartz are vermarine, greened amethyst, or lime citrine. The word prasiolite literally means ""scallion green-colored stone"" and is derived from Greek πράσον ""prason"" meaning ""leek"" and λίθος ""lithos"" meaning ""stone"". The mineral was given its name"
"is called ""electric magenta"" or ""electronic magenta"". Amaranth (color) is a reddish-rose color that is a representation of the color of the flower of the amaranth plant. The color amaranth purple is displayed at right. At right is displayed a Crayola color formulated in 1949; it was originally called ""brilliant rose"" but the name was changed in 1958 to ""magenta"". This color has a hue angle of 329, which is close to the hue angle of the color rose, which is 330. Displayed at right is the Crayola color shocking pink. This is a Crayola crayon color formulated in 1972"
"comes from Russia, especially from near Mursinka in the Ekaterinburg district, where it occurs in drusy cavities in granitic rocks. Many localities in south India yield amethyst. One of the largest global amethyst producers is Zambia in southern Africa with an annual production of about 1000 tons. Amethyst occurs at many localities in the United States. Among these may be mentioned: the Mazatzal Mountain region in Gila and Maricopa Counties, Arizona; Red Feather Lakes, near Ft Collins, Colorado; Amethyst Mountain, Texas; Yellowstone National Park; Delaware County, Pennsylvania; Haywood County, North Carolina; Deer Hill and Stow, Maine and in the Lake"
"Amarantite Amarantite is an amaranth-red to brownish mineral with the general formula of FeO(SO)·7HO or FeSO(OH)·3HO. The name comes from the Greek word αμάραντος which means amaranth, an imaginary undying red flower, in allusion to its color. Amarantite is triclinic, which means crystallographically, it has only one symmetry fold. It must be rotated 360 degrees to be exactly the same. Due to it being triclinic it falls into the biaxial optical class, the axis degrees do not equal 90 degrees and the sides of each axis are not the same length. Amarantite is anisotropic, which means, the velocity of light"
"Superior region of Minnesota, Wisconsin and Michigan. Amethyst is relatively common in the Canadian provinces of Ontario and Nova Scotia. The largest amethyst mine in North America is located in Thunder Bay, Ontario. Up until the 18th century, amethyst was included in the cardinal, or most valuable, gemstones (along with diamond, sapphire, ruby, and emerald). However, since the discovery of extensive deposits in locations such as Brazil, it has lost most of its value. Collectors look for depth of color, possibly with red flashes if cut conventionally. As amethyst is readily available in large structures the value of the gem"
"Aventurine Aventurine is a form of quartz, characterised by its translucency and the presence of platy mineral inclusions that give a shimmering or glistening effect termed ""aventurescence"". The most common colour of aventurine is green, but it may also be orange, brown, yellow, blue, or grey. Chrome-bearing fuchsite (a variety of muscovite mica) is the classic inclusion, and gives a silvery green or blue sheen. Oranges and browns are attributed to hematite or goethite. Because aventurine is a rock, its physical properties vary: its specific gravity may lie between 2.64-2.69 and its hardness is somewhat lower than single-crystal quartz at"
"chosen by the owner. Many fantasy-themed athames are also available from medieval and neopagan supply shops. Ceremonial magicians, on the other hand, use the symbolic colours purple and yellow, representing the alchemical element of Air, to colour the Athame, and it is then inscribed with specific sigils. This is to invoke the powers it corresponds to, and make a proper impression upon the subconscious. The athame's primary use is to channel and direct psychic energy, generally conceived as etheric fire. Some modern day magical practitioners believe that if things such as herbs or cords need to be cut, another knife"
"characteristic which means it is sometimes confused with the less valuable gemstone citrine. A variety of impurities and treatments may make topaz wine red, pale gray, reddish-orange, pale green, or pink (rare), and opaque to translucent/transparent. The pink and red varieties come from chromium replacing aluminium in its crystalline structure. Orange topaz, also known as precious topaz, is the traditional November birthstone, the symbol of friendship, and the state gemstone of the US state of Utah. Imperial topaz is yellow, pink (rare, if natural) or pink-orange. Brazilian imperial topaz can often have a bright yellow to deep golden brown hue,"
"promote ammolite as an ""influential"" stone with what they believe is the power to enhance well-being and detoxify the body by improving its flow of energy or ""chi"". Named the ""Seven Color Prosperity Stone"", each color is believed by feng shui practitioners to influence the wearer in different and positive ways; a combination of ruby red, emerald green, and amber yellow is most sought after for this purpose, the colors being said to enhance growth, wisdom, and wealth, respectively. Ammolite is usually fashioned into freeform cabochons and mounted in gold, with diamonds as accents. Due to its delicacy, ammolite is"
"the light that rebounds from stacked layers of thin platelets that make up the aragonite. The thicker the layers, the more reds and greens are produced; the thinner the layers, the more blues and violets predominate. Reds and greens are the most commonly seen colors, owing to the greater fragility of the finer layers responsible for the blues. When freshly quarried, these colors are not especially dramatic; the material requires polishing and possibly other treatments in order to reveal the colors' full potential. The ammolite itself is actually a very thin sheet, ca. 0.5–0.8 millimeters (0.02–0.03 inches) in thickness. Rarely"