Gemas / Gems

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findmoney - 17 de abril de 2008 - 23:48 - Gemas / Gems

¡Oportunidad para todos!

El mercado de las piedras preciosas es así,no son fuentes constantes,( no es una fábrica) esta es una aparición en la naturaleza y en el mercado,es esporádica es una oportunidad !,es una inundación temporal en el mercado,luego la fuente va a disminuir,hasta que se encuentre otro depósito,hay muchos ejemplos de esto en la historia de la Gemología en el mundo.

¡ Opportunity !

The market of precious stones is thus,are not constant sources,( it is not a factory) this is an appearance in the nature and in the market, she is sporadic is an ¡ OPPORTUNITY !, it is a temporary flood in the market,soon the source is going to diminish, until is another deposit,are many examples of this in the history of the Gemology in the world.

jueves 17 de abril de 2008

Topaz / Wikipedia

Topaz - Wikipedia, the free encyclopedia

miércoles 16 de abril de 2008

What Is Pink Topaz?Custom Designed Jewelry, The Online Jewelry And Gemstone Magazine

Custom Designed Jewelry, The Online Jewelry And Gemstone Magazine
Are Pink Topaz Gemstones Genuine?
What Is Pink Topaz?

SALE Pink Topaz Gemstone 9.43 carats at AfricaGems.com

SALE Pink Topaz Gemstone 9.43 carats at AfricaGems.com
This stone costs;$8.015.50 and is a natural stone is not "burned" Thus says.

martes 15 de abril de 2008

THE GUILD/ Genuine Pink Topaz Dealers: Us Free Gems

Mineralogy Clubs in Europe

Amateur Mineralogy and Rock Hounding, Links for Mineralogists

Gems! Money for All !

What is this? It surely ask, a madman that giving gems on the internet? No! Far from it. I have a very simple but firm conviction, and it is this; Reaching out to others while I receive me. How can I do this? There are certainly many ways, which I also came. It is this; Mandar 2 gems to send the polishing (size most conducive to these gems is the so-called "cut or height Emerald" which is the square typical of the Emerald them as reflections of light inside the stone With these facets acentuán more colour. may sell loose or mounted on jewelry, on eBay for instance, once sold send me what they think it is fair, if I send money, no longer stones them and thus kill "The goose that lays the golden eggs." this is not my concern me that compensates siemore with others if they comply. Today, as we all know we live in the information age, so learn the prices of this stone is as simple as; put in the box search Google or any other search engine; Pink toaz buyers or dealers pink topaz, etc. It is highly desirable to clarify and emphasize that it is genuine and not "burned" like that of Brazil. Already back a long way to command stones, Thailand, Japan, USA, Paris, etc., etc., and approximately 10% is lost, and others that they have confidence and they command more. If you are interested in this escribame dandome his leadership and will take approximately 8 days stones in their hands. These are my mails: topaz-gem@hotmail.com fire-topaz@hotmail.com

* El precio base para poder protejerme un poco ahora,pues en este caso el número de gente que no es seria esta creciendo en forma alarmante,es de$50.00 U.S.D al recibirlos le mandaré yo las 2 primeras gemas.

* The base price for power protejerme a bit now, because in this case the number of people is not serious is growing at an alarming rate, is $ 50.00 USD to receive you send me the first 2 gems.

The Mineralogy,Geology and Occurrence of Topaz

Michael A. Menzies
#28,1901 Varsity Estates Drive N.W
Calgary,Alberta,Canada,T3B 4T7

Topaz occurs in range of fluorine-rich silicate
environoments,fromplutonic through volcanic,and very rerely metamorphic.Gem crystals in cavities form under more limited conditions,primarely in granite-derived pegmatites,greisens and rarer hidrothermal vins,as well as in some rhyolites.Such deposits worldwide produce a variety of habits and colors of this popular mineral and gemstone.

The well-known topaz rhiolites of central Mexico (Durango,Zacatecas,San Luis Potosi and Guanajuato) are described by Sinkankas (1959 and 1976),Burt and Sheridan (1985),and Panczner (1987).Burt and Sheridan report that the Mexican deposits appear related to a common magmatic episode around 39 million years ago.In contrast to the rhyolites of the western U.S.,these rhyolites lack garnet,contain tin rather than molybdenum, and are associated with born-rich intrusions.The topaz crystals themselves are very similar to those from Utah, though some have a more pronounced reddish hue due to included hematite. Sinkankas (1959 ) describes the representative deposit near Tepetate,southwest of San Luis Potosi.

Bulk chemical analyses by ICP-AES methods of gem-quality,completely colorless crystals and crystals having a distinct pink-red outer zone showed that the pink material contains 20 ppm Mn while the colorless matrial showed>8ppm.Iron contents are also higer in the pink material (0.08% vs. 0.05%).Chemical analysis by LA-ICP-MS methods of individual spots within a color-zoned crystals showed Mn to be clearly concentrated in the pink-red zone:MnO (0.065 weight%) and Fe2O3(0.035 weight%.Cr,V,Co and other possible chromophers were not detected.Trivalent Mn and Fe are probably substituting for the octahedral Al in the topaz structure.

The occurrence is sporadic and appers to be structurally controlled by late-stage ring fractures and random fractures within the rhyolite host.The majory of the quartz and feldespar inclusions.Crystals may be as much as 4cm in length.Some smaller crystals (<> All crystals are a yellow-orange sherry color in unopend lithophysal cavities and typically fade to colorless in a matter of days to a week or two,depending on the air temperature,amount and intensity of light. Heating causes the color to fade rapidly.Some crystals,however,do not completely fade to colorless but reveal an outer zone that is distinctly pink to reddish pink in color. The pink-red zone is stable to light and heat.