The most common form of this stone used in jewellery these days is the blue zircon. Heat treated and resembling the blue topaz or aquamarine, the blue zircon is a striking stone, its doubly refractive nature giving it an enviable brilliance.
00000The white zircon (also heat treated) was once a common simulant for diamond but has been superseded by the lustrous and more durable synthetic cubic zirconia.
00000It is used to aid the sufferers of insomnia and is said to bring spiritual knowledge and provide emotional balance.
 

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