Topaz - Wikipedia, the free encyclopedia
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Topaz is a silicate mineral of aluminium and fluorine with the chemical formula Al 2 SiO 4 (F,OH) 2 . Topaz crystallizes in the orthorhombic system and its crystals are mostly prismatic termina...
en.wikipedia.org/wiki/Topaz
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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. These so-called apocalyptic stones are intended to serve in protection against enemies and as a symbol of beauty and splendour.
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www.gemstone.org/gem-by-gem/english/topaz.html
www.gemstone.org/gem-by-gem/english/topaz.html
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Information on the mineral topaz ... Citrine (a yellow-brown variety of Quartz) closely resembles yellow-brown Topaz. Unfortunately, unscrupulous dealers have adapted false name for Citrine so the unaware buyer thinks he is buying the more valuable Topaz.
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www.minerals.net/mineral/silicate/neso/topaz/topaz.htm
www.minerals.net/mineral/silicate/neso/topaz/topaz.htm
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Topaz is a gemstone of all colors, and its most valuable color is a golden orange-yellow, called "imperial topaz". Topaz is commonly thought of as a sky-blue gem, but it was not until this century that blue topaz became widespread on the gem market.
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www.minerals.net/gemstone/gemstone/topaz/topaz.htm
www.minerals.net/gemstone/gemstone/topaz/topaz.htm
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Mineral Information on the WEB ... The name Topaz is thought to have come from the island named Topazion (after the Greek "topazos"), which was later changed to Zebergit, and is now called St. John's Island, in the Red Sea.
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www.theimage.com/mineral/topaz/topaz.html
www.theimage.com/mineral/topaz/topaz.html
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Clear topaz has little value, and is quite prevalent. Some varieties can be irradiated to various shades of blue, and this acceptable in the trade. Most blue topaz on the market today is irradiated. There is a grayish variety of topaz that is sometimes cut to produce a stone called "champaign" topaz.
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www.theimage.com/gemstone/topaz/topaz.html
www.theimage.com/gemstone/topaz/topaz.html
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Topaz, information, colors, pictures of rough and polished stones, legend and healing properties. ... Topaz Facts, Information and Description ... 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,
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www.bernardine.com/gemstones/topaz.htm
www.bernardine.com/gemstones/topaz.htm
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As a key player in the UK financial systems market Topaz work with companies that range from medium to large UK corporate organisations. We believe that each business is unique, which is why our accountancy, payroll and other software solutions are designed to exactly fit your business processes. ... Topaz design, develop,
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www.topaz.co.uk/
www.topaz.co.uk/
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