The "sherry" type of this golden gemstone is sometimes heated to turn it pink
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Topaz - The Mineral and Gemstone Kingdom  Topaz from certain localities may also turn pink or colorless upon heating. ... tabular, and stubby crystals, usually striated and sometimes quite large. ... The famous golden orange-brown Imperial Topaz, as well as Topaz of ... Glassy colorless and sherry crystals, some very large in size, come from the gem mines at Mogok,...
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GemologyOnline.com  View topic - Imperial vs. Precious Topaz  Jul 14, 2008 ... In my opinion the two are separated by the colour of the stone. An Imperial should contain and Orange, Red or Rich Golden colour as a .... light to see if they will "turn", exhibit pink or peach or sherry. ... Reds and sherries are hard to heat treat. ... I too sometimes think of Imperials as Precious Imperial Topaz.
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TOPAZ main - The Department of Geological Sciences  It is a birthstone for November (as is citrine) and the state gem of Texas. ... reddish-orange, but is also sometimes used (incorrectly) to denote a sherry-colored, orangish-brown. ... Sherry-brown, pink, or golden yellow topaz may show a strong orange-yellow ... Radiation + heat treatment of blue stones ubiquitous (see below).
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Free Flashcards about GEMS & JEWELRY - StudyStack  THE "SHERRY" TYPE OF THIS GOLDEN GEMSTONE IS SOMETIMES HEATED TO TURN IT PINK, TOPAZ. THE OLD MASTERS CREATED THE PIGMENT...
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Topaz Value, Price, and Jewelry Information - International Gem ...  The rarest are natural pink, red, and fine golden orange, sometimes with a pink tone. ... weaker in SW, greenish white to violet-blue in X-rays, and gems turn brown due to irradiation. Sherry brown and pink: orange-yellow in LW, weaker in SW, sometimes greenish ... Most blue topaz has been irradiated and heat treated.
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Molecular Expressions: The Birthstone Collection - Topaz  Topaz is a common gemstone that has been used for centuries as jewelry. The stone is one of the hardest minerals, and is the hardest silicate mineral found in nature. ... popular color is a rich orange-yellow, resembling the color of sherry wine. ... in 1750 by a Parisian jeweler who used it to create the first artificial pink topaz.
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Gemstone and Jewelry Glossary and Terms - Jewelry Television  Rainbow andradite, a rare and exotic variety only found in Japan and Mexico, exhibits an ... Often referred to as aqua, this gemstone has been prized for many centuries. ... Beryls come in a wide variety of colors including greens (emerald), blues ... is a medium slightly yellowish-green stone speckled with orangy red spots.
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Rocks and Minerals Dictionary: H - EnchantedLearning.com  The mineral halite, formed of NaCl, is a colorless to gray to brown crystal. ... Heat treatment is the heating of stones to a high temperature in order to enhance the ... (not natural) green glass that is made from "rock dust" (not volcanic ash) taken from ... Howlite was named for its discoverer, Henry How, a Nova Scotia geologist.
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Birthstone Gemstone Information and Lore | eBay  January Garnet Garnet is one of the largest families of gem stones and ... In ancient times the sea colored blue-green Beryls were the most desirable ... Therefore Emeralds should not be steamed or cleaned in the ultrasonic. ... Ruby is thought to attract and retain reciprocal love, and to bring success and good fortune to its...
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Birthstone Spotlight: Ruby | ApplesofGold.com  Jul 16, 2013 ... About  Blog  Search  Contact Us ... As one of the four classic precious gemstones, the ruby has a long ... oldest biblical book, states For the price of wisdom is above rubies. ... The dazzling red hue of this stone seems to flicker like a flame, ... In addition to serving as the July birthstone, the ruby is also the...
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Smoky Quartz: A transparent brown gem & gem material  Smoky quartz is a brown gem that ranges in color from yellowish brown to a brown so dark that it appears to be black. It is popular in men's jewelry. ... necklaces, earrings, and brooches for people who like the yellowish brown to brown color. ... Smoky quartz is the national gem of Scotland, where it is called cairngorm after...
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How to Buy Topaz | November Birthstone - American Gem Society  It's also given to celebrate 19th wedding anniversaries, and certain types (blue and Imperial, ... Imperial topaz is the most highly prized for its intense reddish orange color. ... these can be treated with heat to enhance the pink and red hues. ... largest cut yellow topaz (the American Golden Topaz, weighing 22,892.5 carats).
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Smoky quartz - Wikipedia  Smoky quartz is a grey, translucent variety of quartz. It ranges in clarity from almost complete ... Cairngorm is a variety of smoky quartz crystal found in the Cairngorm ... in recent times it has become a popular gemstone, especially for jewellery. ... Needham states that dark glasses were worn by Chinese judges to hide their...
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CS08 Color.qxd - Gemological Institute of America - GIA  Most buyers prefer rich red hues (above) to dull pink ones (left) in tourmaline. ... The transmitted wavelengths give the gem its basic color, ... For example, a ruby might have some blue color zoning that gives ... In this selection of corundum, the basic colors, or hues, range from red through ..... transparent colored stones.
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gemstones - eilishbouchier  Aug 5, 2016 ... Psychic insight; stimulates third eye; aid for meditation, spiritual opening ... Colour Its color is reddish-orange or brown chalcedony coloured by iron oxide. .... The best coral comes from the Mediterranean Sea, particularly off the ..... Peridot, also known as Olivine or Chrysolite, the volcanic gem, is the best...
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33 Types of Yellow Gemstones for Jewelry | Kamayo Jewelry  Oct 15, 2013 ... Here is a list of yellow jewels, from the most expensive to the more ... A variety of the yellow gems can be quite expensive, however, even more expensive than white ... the variety of topaz called the precious topaz, or the more valuable ... modern birthstone for the month of October in the Western calendar.
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Types of Gemstone - Diamonds-n-Gold Direct  For example, diamonds have always been considered as precious stones, yet there ... The name of this remarkable gemstone comes from Greek 'Smaragdos', meaning 'Green Stone'. ... The red color of the ruby is incomparable: warm and fiery. .... Opal, Milk or Crystal Opal, Boulder Opal, Opal Matrix, Mexican and Fire Opal.
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Iron Pyrite or Fools Gold Enhances Energy & Vitality  Like real gold it has a lovely luster and its golden shiny appearance is inviting to look at. ... There is also another lovely form called a Pyrite Sun, and these are also ..... and this is partly because it has some resemblance to gold, which is one of the ... it with Citrine Crystals, Heliodor, Preseli Bluestone, Hematite Stone, Golden...
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Red Spinel. Often confused for rubies, red spinel is a brilliant ...  Often confused for rubies, red spinel is a brilliant gemstone sought after for its ... GIA (021313) | See more about Ruby Red, Gemstones and Royal Jewels. ... Its intense color was thought to come from an undying flame inside the stone; or, as some ..... Rich coloured deep raspberry red crystals of Spinel, from the Marble area...
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Saturday JEOPARDY - Net Cooking Talk  [ what is sapphire ? ] 6. ($4000)- In 1750, a Parisian jeweler discovered that heat turns this sherry-colored Brazilian gem pink... [what is topaz ? ]
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Brown Gemstones and Minerals | Gem5.com  It also appears as pale yellowish, yellow, brown, greenish-brown to black. ... A well polished piece of yellowish smoky quartz may appear like amber, while a ... Axinite: Axinite is a honey brownish to dark brown gem that is named after the axe ..... It is an opaque black coalified fossilized drift wood from the coniferlike, 180...