Ruby - Wikipedia, the free encyclopedia
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A ruby is a pink to blood-red gemstone, a variety of the mineral corundum (aluminium oxide). The red color is caused mainly by the presence of the element chromium. Its name comes from ruber , Lat...
en.wikipedia.org/wiki/Ruby
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Rubies are mined in Myanmar using five different methods: pit-method, open-trench, tunneling, open-cast, and 'lu'. A ruby larger than 10 carats is worth more than an equivalently sized diamond, because it is so rare. ... Fresly Mined Rubies...
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www.earlham.edu/~cragwre/beaches.htm
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When one considers that today probably 90% or more of newly-mined rubies owe a good measure of their clarity and color to heat treatment, this statement does not seem so outlandish (unfortunately, most Burmese rubies are today also heat treated)
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www.ruby-sapphire.com/pigeons-blood-mogok.htm
www.ruby-sapphire.com/pigeons-blood-mogok.htm
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So ya wanna find rubies, huh? Well, tough guy, ... The government had a choice: either they ban the sale of illegally-mined stones (and thus encourage the development of smugglers), or they allow their sale, no questions asked (as long as they are offered at the official weekly sales, where a duty is collected)
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www.ruby-sapphire.com/vietnamese_rubies.htm
www.ruby-sapphire.com/vietnamese_rubies.htm
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The Mogok Valley in north central Burma is the source of the majority of the world's finest rubies and sapphires. This page describes a journey to this legendary valley and offers links to a multi-page picture gallery. ... If not for the rubies and sapphires, it is quite unlikely any humans would be there,
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www.burmarubies.com/mogok.html
www.burmarubies.com/mogok.html
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Rubies are often heat treated to permanently improve their color and clarity. ... Bright red stones are mined in: Afganistan, Pakistan, Vietnam. Brownish-red ruby are from Thailand. Darker stones are generally produced from the mines in Australia, India, Russia and USA (Georgia, North Carolina and Wyoming).
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www.jewelrymall.com/stones/ruby.html
www.jewelrymall.com/stones/ruby.html
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According to campaigners,95 per cent of all rubies that eventually make their way on to the counters of some of the world's most prestigious jewellers, where they sell for up to £500,000, are mined in Burma.
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www.independent.co.uk/news/world/asia/jewellers-are-urg...
www.independent.co.uk/news/world/asia/jewellers-are-urged-to-stop-selling-rubies-mined-in-burma-397561.html
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But in the African mines too, fine and clear rubies of good colour, purity and size are very rare. Usually the qualities mined are of a merely average quality.
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www.gemstone.org/gem-by-gem/english/ruby.html
www.gemstone.org/gem-by-gem/english/ruby.html
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Travel question: Where are ruby gems mined in the world? Rubies are mined in Russia, Australia, India, Thailand and The U.S.A, but 95% of rubies are mined in Burma's Valley of the Rubies and these are ... Rubies are mined in Russia, Australia, India, Thailand and The U.S.A, but 95% of rubies are mined in Burma's Valley of...
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wiki.answers.com/Q/Where_are_ruby_gems_mined_in_the_wor...
wiki.answers.com/Q/Where_are_ruby_gems_mined_in_the_world
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