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There are several ways of corundum can be processed to improve the Gemstone, fracture filling is a common practice of using epoxy resin, oil, wax and glass as fillers, which reduces the visibility of defects in making the fractures non-reflecting.
Heating can corundum ease or intensify the color and increase the clarity by the melting of certain inclusions of rutile needles, "silk", which is a phenomenon common in sapphires. Diffusion treatment is another method but this color as the surface of the stone while the center remains colorless, it is a regulation Unlike permanent radiation treatments which fade and is not an accepted method of strengthening the Sapphire.
Diffusion treatment may be used to produce asterism, a six ray star effect.
Corundum of any color except red Ruby is known as sapphire, dyes in the most sought Gemstone Blue is due to the presence of iron and titanium, an iron content of small yellow tones creates and green while the rose is produced by the presence of chromium and orange by iron and vanadium.
Some famous Sapphires have been recognized as great in the world, namely St Edward's and Stuart Sapphire, which are both part of the crown jewels of British, U.S. heads of Presidents Washington, Lincoln and Eisenhower, were carved on three major Strass Sapphire.
The sapphirus Latin word meaning blue, and this stone is said to heal the mind and improve mental clarity, according to the ancient Persians precious blue stone was placed on a pedestal only because they believed that the earth rested on a giant sapphire with the blue sky is a reflection of the Sapphire. Many great kings throughout history, they say Sapphire jewelry worn to protect against the ravages of battle and precious stones in India is considered an antidote against the effects of poison. In India people are investing in Sapphire Jewelry because it is considered a symbol of truth and loyalty, to wear the gemstone is to show the dedication and loyalty in expression of love, and legend has it that the stone was a sign of loyalty and that Sapphire do not shine if the wearer had been unfaithful.
Like ruby sapphire has a hardness of 9 on Moh's scale, making them ideal for everyday wear. Because of pretty stones color and hardness from time to time, it will be cut into sheets and used as the face on designer watches.
Hot soapy water is a good way to clean Sapphire and it is also perfectly safe to put the gems in an ultrasonic cleaner. The color blue plays an important role in all and each of our lives, we see all the time, a blue sky on a beautiful sunny day makes us all feel good and nothing seems more inviting than the blue deep ocean, and finally when your mood is light blue in your precious gems and let the magic beauty lift.
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Article Source: ArticlesBase.com – Sapphire – a True Blue Symbol of Truth
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