>Ruby – Birth Stone for July
Written by sudha on February 17, 2009>The most costly gemstone – the Ruby, is one of the world’s rarest stones and is the red variety of corundum (Aluminium oxide) with traces of chromium. Highly valued Ruby having a bluish tint is called pigeon-blood-red. Less costly ones have brownish or yellowish tint. The best quality ruby is obtained from Burma, while commercially important ones are from Indonesia.
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