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Most gemstones are natural mined from the earth. Some gems are synthetic and are made in a laboratory. But these days many gems are natural material which is reinforced by a variety of ingenious methods.

The most common technique to improve color and clarity of the gems is the treatment heat. Heat treatment is an ancient art that has become well accepted in the trade. In fact, the vast majority of sapphires and rubies in the market have been treated with heat. A number of other gemstones, including tanzanite, and blue zircon are also commonly treated with heat.

Other methods of enhancing gemstones are of more recent vintage and involve the application of very sophisticated technology. The most dramatic of these new methods using technology high-tech coating to turn colorless topaz quartz brilliant designer jewelry.

The technology of thin film deposition using extensively in the optical industry and non-reflective coatings reflective, and in the electronics industry for the construction of integrated circuit layers semiconductors. The technology consists of depositing a thin layer of film on a base material, where the film layer may be only a few microns thick.

In the gemstone industry, the thin metal film is applied to the pavilion of the gemstone, so interesting color effects are reflected by the crown. The film is molecularly bonded to the substrate, becoming part of topaz or quartz material. The film is tough and durable, and since it only applies to the flag stone can not be affected by scratches on the crown.

The best-known gems produced by this method are usually sold under the name Mystic Topaz and Quartz Mystic. They show a rainbow effect glasses. Some bright blue and pink topaz is also produced in this way. These claims do not have cheap jewelry and used usually to make fun and colorful jewels. But these jewels are topaz or natural quartz, with all the virtues of gem materials. In the future we can see more gemstones valuable optically modified by techniques of thin film deposition.

The coated gems are very durable and require no special care. They should not be exposed to abrasives, acids or harsh chemicals. They are cleaned with only mild soap, water and a soft brush. However, gems can not be re-coated cutting or polishing, because the coating would be affected.

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GemSelect is a leading online dealer in fine gemstones, specializing in sapphire, spinel, garnet, tourmaline and topaz. We also sell fun gems like Mystic Topaz.

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