Real gem, gemstones Wholesale and Retail.......... Home Shopping About Us Shipping Help Desk The world's Online Net Work Shop!! $2.00 Shipping!! Online Network Shopping Gemstones Gallery - Blue Topaz     ► Hardness   8.0   ► Appearance   The names "Sky blue topaz", "Swiss blue topaz", "London blue topaz" are trade names which refer to the darkness of the gemstone, with "sky blue topaz" being the lightest and "London blue topaz" being the darkest.   ► Enhancements   Blue topaz is usually irradiated and often heated to produce blue color.

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 Webpage last updated on  07/17/2007                             

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