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Topic: Topaz


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In the News (Thu 23 Nov 17)

  
  Topaz - english
The topaz has been known for at least 2000 years and is one of the gemstones which form the foundations of the twelve gates to the Holy City of the New Jerusalem.
The colour in which the topaz is most commonly found is yellow, and that is the colour in which it occurs in one of the major German gemstone rocks, the Schneckenstein (a topaz-bearing rock said to resemble a snail) in Saxony.
Since then, the topaz has been a rather exotic figure in the jewellery trade, and has been given the additional predicate 'pure' to make it clear that the topaz, not the quartz topaz, is meant.
www.gemstone.org /gem-by-gem/english/topaz.html   (414 words)

  
  Topaz - LoveToKnow 1911
It is believed that the topaz of modern mineralogists was unknown to the ancients, and that the stone described under the name of ToWcos, in allusion to its occurrence on an island in the Red Sea known as T01r4cos vij ros, was the mineral which is now termed chrysolite or peridot.
Topaz usually occurs in granitic and gneissose rocks, often in greisen, and is commonly associated with cassiterite, tourmaline and beryl.
Topaz occurs in the tin-drifts of New South Wales, especially in the New England district; it has been discovered in the Coolgardie goldfield, West Australia; and it is found also in the tinfields of Tasmania and on Flinders Island in Bass's Strait.
www.1911encyclopedia.org /Topaz   (1125 words)

  
  Topaz - Wikipedia, the free encyclopedia
Topaz has a hardness of 8, a specific gravity of 3.4-3.6, and a vitreous luster.
Topaz is found associated with the more acid rocks of the granite and rhyolite type and may be found with fluorite and cassiterite.
The name "topaz" is derived from the Greek topazos, "to seek," which was the name of an island in the Red Sea that was difficult to find and from which a yellow stone (now believed to be a yellowish olivine) was mined in ancient times.
en.wikipedia.org /wiki/Topaz   (379 words)

  
 Topaz (1969)
Revealing mistakes: As the camera, suspended on a ceiling track, follows Rico Parra down the crowded hotel corridor in New York, one of the hanging lights can be seen to suddenly disappear upwards before it has gone out of shot (allowing the camera to continue forwards).
Featured in 'Topaz': An Appreciation by Film Critic/Historian Leonard Maltin (2001) (V) more
So if one learns to value these moments and neglects the terribly eclectic plot (Hitchcock was forced to extremely cut down the movie), it's not so bad a movie after all.
www.imdb.com /title/tt0065112   (564 words)

  
 Imperial Topaz Buying Guide
For the general public, topaz means a yellow gem, and much citrine and smoky quartz has been sold as “golden topaz” and “smoky topaz.” The terms “imperial” and “precious”; topaz are often used to distinguish between true topaz and the quartz look-alikes.
The name “imperial topaz” is said to have originated in the 19th century in Russia, where the Ural Mountain mines were an important source.
Topaz commonly occurs in colorless and brown colors, it is the rare golden, orange, pink, red and purple colors, which are often termed “precious”; or “imperial” topaz, that are the mainstay of the fine gem market.
www.palagems.com /topaz_buyers_guide.htm   (2704 words)

  
 topaz - HighBeam Encyclopedia
TOPAZ [topaz], aluminum silicate mineral with either hydroxyl radicals or fluorine, Al SiO
Topaz crystals, which are of the orthorhombic system, occur in highly acid igneous rocks, e.g., granites and rhyolites, and in metamorphic rocks, e.g., gneisses and schists.
Important sources of topaz are in Russia, Siberia, Brazil, Australia, and Mexico and in New Hampshire, Colorado, and Utah in the United States.
www.encyclopedia.com /html/t/topaz.asp   (373 words)

  
 Gem Hut - Precious Topaz Gemstones
Topaz and citrine are the birthstones of the month of November.
Yellow topaz is sometimes called "precious topaz" to distinguish it from the names "gold" and "madeiria topaz", which are in fact citrine (quartz).
The term "imperial topaz" is used by ethical jewelers to refer to topaz that is reddish orange of medium tone and higher saturation.
www.gemhut.com /topaz.htm   (170 words)

  
 Topaz Camp
Topaz internment camp opened on September 11, 1942 and is located in Millard County, Utah, 140 miles south of Salt Lake City.
Topaz featured an organized protest against the registration questionnaire, in which a petition was circulated demanding the restoration of rights as a prerequisite for registration.
Camp life at Topaz settled down and residents continued the routine of cultivating gardens, attending classes at schools or the recreation halls, and working.
www.millardcounty.com /topazcamp.html   (1628 words)

  
 Topaz the Gemstone
Topaz is well known to be yellow, and in ancient times all yellow stones were called topaz.
Blue topaz does occur naturally, but almost all commercially available blue topaz is produced from less attractive colours which are irradiated and heat treated to turn them blue.
We were showing a customer a number of loose topazes, and she dropped one a short distance onto a glass topped counter, with the result that we instantly had two topazes instead of one.
www.24carat.co.uk /topaz.html   (449 words)

  
 Let's Talk Gemstones
Topaz and staurolite are the two remaining minerals of this group used as gems.
Topaz is found in contact zones, in cavities in granite and rhyolite lava rocks, pegmatites, high temperature quartz veins, and as worn pebbles in alluvial deposits.
The name topaz began to be applied to the aluminum silicate containing fluorine and hydroxyl in the early part of the eighteenth century.
www.attawaygems.com /NMFG/Lets_talk_gemstones_topaz.htm   (1182 words)

  
 Topaz, the Mineral (DesertUSA)
Topaz is a silicate mineral that has been valued for centuries as a gemstone used in jewelry.
Topaz is the hardest silicate mineral, but it can be split with a single blow, a trait it shares with diamond.
Topaz was also said to change color in the presence of poisoned food or drink, which made it popular among early monarchs.
www.desertusa.com /mag98/dec/papr/geo_topaz.html   (442 words)

  
 TOPAZ (Aluminum Silicate Fluoride Hydroxide)
Topaz is a common gemstone that has been used for centuries in jewelry.
The blue topaz that is often confused with aquamarine is rarely natural and is produced by irradiating and then heating clear crystals.
Topaz is the hardest silicate mineral and one of the hardest minerals in nature.
mineral.galleries.com /minerals/silicate/topaz/topaz.htm   (386 words)

  
 Topaz, Topaz Information, Topaz Jewelry and Topaz Gemstones
The term "precious" topaz was originally used to distinguish yellow and orangish topaz from other gems such as some citrines and smoky quartzes which had erroneously been referred to in the past as "Maderia topaz' and "smoky topaz".
The subject of enhancement in the topaz family is a complicated one, but for the most part, except for colorless stones, it is prudent to assume that some form of heat and/or irradiation has been used on stones prior to cutting.
Blue topaz begins "life" as colorless or very lightly tinted natural topaz crystals which are then irradiated to change the color to blue and heated to stabilize the change.
www.gemsociety.org /info/gems/Topaz.htm   (827 words)

  
 Topaz - Facts, Lore, History, Myths and Pictures
Topaz is the birthstone of November (yellow topaz) and December (blue topaz), it is a talisman for the sign of Sagittarius and the suggested anniversary gemstone for the 4th, 19th or 23rd year of marriage.
Topaz occurs in a wide range of colors including red, orange, peach, pink, gold, yellow, brown and clear and is found in Brazil, Sri Lanka, Pakistan and Russia.
Although topaz is a very hard gemstone, an 8 on the Mohs scale of hardness, it can be split with a single blow and should be protected from hard knocks.
www.bernardine.com /gemstones/topaz.htm   (385 words)

  
 Electronic Signature Software index - Topaz Systems, Inc.
The Topaz approach to electronic documents and contracts with signatures is to mimic the tried-and-true methods of ink-on-paper contracts, documents, and authentication.
In addition, the Topaz system is the only one on the market which allows the signer of the document to take high-tech receipts of what has been signed - a major step forward in providing the traditional benefits of pen-on-paper signed documents.
Topaz forensic and biometric verification meets both the letter and the spirit of the regulations, especially the CA regulations which specifically require the time-consuming process of traditional forensic verification to authenticate a signature.
www.topazsystems.com /Software/index.htm   (1110 words)

  
 November and December Birthstone - Topaz
Yellow Topaz is the modern November birthstone and blue topaz is the Modern December birthstone.
Topaz is the accepted gem for the fourth, 19th and 23rd wedding anniversaries.
Topaz is found in a variety of colors including: brown, red, orange, pink, sherry, yellow as well as colorless.
www.bernardine.com /birthstone/topaz.htm   (220 words)

  
 www.myspace.com/texastopaz
Topaz then moved to Washington D.C. where he attended The Duke Ellington School of the Arts for jazz, where he studied with numorous jazz legends, started his first band and began his recording career with Eric Hilton of Theivery Corporation.
Topaz then moved to New York City where his musical identity began to take shape in the muscular twists and turns of his phrasing, cool, soulful feeling and grooving rhythmic energy.
Topaz has now returned to his hometown of Austin, residing on the banks of the Colorado river where he is delving into his hill country roots by bringing some blues singing and harmonica playing into the mix of high energy dance grooves.
www.myspace.com /texastopaz   (877 words)

  
 Topaz
From lamination until delivery, and every step in between, the Topaz team is focused on producing the ultimate sportfishing machine.
Every Topaz is equipped with huge fish boxes, tackle storage, rigging stations, live baitwells, washdown systems, rod holders, rod storage....
Quite candidly, a Topaz boat has more fishing standards than any boat in her class.
www.topazboats.com /about.aspx   (344 words)

  
 Topaz
Topaz is transparent and translucent, with a vitreous luster, and high specific gravity, 3.49-3.57.
Topaz occurs in cavities within granite or rhyolite igneous rock, pegmatite dikes, high temperature quartz veins, and/or alluvial deposits (The Mineralogy Database).
Topaz is also serves as the gemstone of the state of Texas.
www.emporia.edu /earthsci/amber/go340/topaz.htm   (510 words)

  
 American Gem Trade Association - Topaz
Topaz is found in Brazil, Mexico, Sri Lanka, Africa and China.
The brilliant blue Topaz is a shade found rarely in Nature.
The birthstone for November, Topaz is a talisman for the sign of Sagittarius and is the suggested gift for the 23rd anniversary.
www.agta.org /consumer/gemstones/variations/topaz.htm   (156 words)

  
 Imperial Topaz
Topaz from Sri Lanka, Pakistan and Russia is colorless or an odd gray-brown.
Blue topaz is one of the most popular gemstones due to its fine array of color and inexpensive price.
She suggested that the Topaz be placed in a glass of wine and left for three days and three nights.
www.carigem.org /topaz.htm   (969 words)

  
 Topaz Recruitment
As authors of Topaz Financials and Topaz EMS we can provide a bi-directional interface that may be configured to suit the needs of any business sector.
Topaz offers a full range of associated services such as project management, consultancy, analysis and design, software development, implementation, technical services, data migration and training.
Topaz have a standard price list for all our products, but we are more than willing to work within the partners existing approach and indeed that of the market sector which they operate.
www.topaz.co.uk /partnerprogramme.asp   (430 words)

  
 Topaz Mountain Rhyolite
The Miocene Topaz Mountain Rhyolite is composed of coalescing flows and domes of topaz-bearing alkali rhyolite and stratified tuff.
The Topaz Mountain Rhyolite is famous for occurrences of topaz, garnet, beryl, bixbyite, and other minerals in vapor-phase cavities.
SLIDE 27 is a section of Topaz Mountain Rhyolite on the east side of Topaz Mountain.
pubs.usgs.gov /of/1998/ofr-98-0524/TOPAZ.HTM   (509 words)

  
 JEWEL: Topaz
Though her mother is of Quebecois descent, Topaz was raised in an English speaking part of Canada and her mother spoke to her mostly in English when she was growing up, in memory of her dead father.
For this reason, Topaz's knowledge of French is not fluent, unlike Copper's Spanish, though it is perhaps more substantial than that of her bandmates, and she has no qualms about singing in her mother's language.
Topaz's stage name is chosen because of her date of birth, since topaz is the November birthstone.
members.tripod.com /~cogasinato/topaz.html   (569 words)

  
 Topaz at Topaz Mountain - Utah Geological Survey
The topaz crystals at Topaz Mountain are naturally amber colored, but become colorless after exposure to sunlight.
The crystals formed within cavities of the Topaz Mountain Rhyolite, a volcanic rock which erupted approximately six to seven million years ago (Tertiary Period) from volcanic vents along faults in the area.
Larger amber crystals or clusters of topaz and other minerals can be found by breaking open the white rhyolite to find cavities.
geology.utah.gov /utahgeo/rockmineral/collecting/topaz.htm   (368 words)

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