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Although some dealers may tell you they have unheated stones, it is best to take this with a pinch of salt. The accepted wisdom is that all Tanzanite is heated. Unheated the stone is a brownish colour and only after heating does it go blue/violet. Some crystals have admittedly been heated in the ground and are already blue but will generally be heated again anyway as the color always improves further. Stones are heated at 600 degrees celcius in a gemological oven for a short time. Further information is available at <a href=http://www.lapigems.com/tanzanite.asp</a>
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AAA quality tanzanite Vb or bV 6/5 or 5/6 has a value of around £250 per ct. TV stores do not usually sell this quality and value should be reduced accordingly Fo…r Fine Quality Tanzanite around 2-10 carats value would be around $2000-$5000 per carat. You can get this Top Fine Tanzanite at Mohranet.com http://www.mohranet.com/gemstone/Loose-Tanzanite-Rings/1 www.Mohranet.com - Gemstone Bracelets, Gemstone Rings, Gemstone Earrings, Pendants, Tanzanite Rings, Diamond Rings, AAA tanzanite Gemstones, Studs, Emerald, Aquamarine rings, Sapphire
Actually neither term is correct. Tanzanite is a variety of the mineral Zoisite. Quartz and Diamond are minerals in their own right and there is absolutely no connection… between the 3 of them. They all have unique physical and chemical properties. Anyone trying to sell "Tanzanite Quartz" is most likely selling Amethyst (Amethyst is the purple variety of Quartz) and anyone selling Tanzanite Diamond is simply being unscrupulous. There is no such thing. You might want to learn more about Tanzanite here on www.lapigems.com as they have extensive educational features.
Tanzanite can only be founded in Africa's Rift Valley. It is about 25 miles from Mt. Kilimanjaro in Tanzania, in an area called Marerani. There are four actively mined tanzani…te blocks labeled A-D. A and C block are reserved for foreign investment, while B and D can mine mined by locals. Gingerbread2480- I believe you are wrong, according to the information I have gathered Tanzanite is in fact mined in the Merelani hills.
It entirely depends on the quality of the stone you buy. Tanzanite can range from $100 per carat to $2000 per carat depending on the quality and of course where you buy. This …site has some excellent information on Tanzanite: http://www.lapigems.com
Tanzanite is mined in 4 sections. Block A, B,C and D blocks were made by the government/ Blocks A and C were given to large operators and Blocks B and D were for local min…ers.
It's just a name assigned to this color stone from Jewelry Television (JTV) with their trademark on it. They used to call it green tanzanite and claimed that it was a cross be…tween tsavorite and tanzanite and now they are saying that they don't know what causes this color. Their are green tanzanites and even pink tanzanites but JTV calls them all ocean tanzanite.
You find tanzanite @Mt.kilimanjaro tanzanian but its very rare across the world.
Sadly it is not any more, it has been said that in approx 8 years there will be no more. All the mones have closed now I believe except one in Africa, Tanzanite is running out… and if you own any, hold on to it as it will be considered rare, the value will then increase immensly
Tanzanite is the blue/purple variety of the mineral zoisite, its chemical formula is :- (Ca2Al3(SiO4)(Si2O7)O(OH)).
No, "tanzanite" is a trade name for the mineral zoisite, no relation to diamond.
Tanzanite quartz, according to Crystal Age.com, is an artificially created stone that reflects intense energy. Tanzanite aura quartz is made from quartz that has went through …a special process. In this process, indium, gold or niobium is used to bind with the quartz and the resulting crystals exhibit a tanzanite appearance.
You heat treat to improve the molecular structure of the steel. In the untreated state steel is very soft and is relatively easy to bend but when hardened the steel become ver…y hard and brittle. The steel is so brittle after hardening that if say dropped on a concrete floor it may shatter. Tempering relieves some of this stress and makes the steel hard but not too hard.
It means it has been heated up to kill germs and bacteria, or it means that a metal has been treated to change its properties.
Tanzanite is mined in Northern Tanzania, on a ridge near Mererani, some 40 km southeast of Arusha.
On the Mohs scale, 6.5 to 7.0.