nature2016.12.10 14:45


12 Most Expensive Gemstones In The World


Trevor Nace ,   CONTRIBUTOR

There are over 4,000 minerals on earth , many of which we will never see in real life. Bizarre mineral assemblages and trace impurities have caused some of the world's rarest gemstones. Some you likely have heard of and others will undoubtedly leave you searching Google GOOGL +1.83% for more information.With the list below, we will cover a short list of incredible gemstones, a bit about their origin and mineralogy.


As a quick background, minerals can be classified as gemstones based on their chemical composition, refraction, crystal structure, and optical characteristics. The classification and degree of imperfections in a mineral or gemstone can determine value and associated rarity.


I adore wearing gems, but not because they are mine. You can't possess radiance, you can only admire it. - Elizabeth Taylor


12. Jeremejevite - $2,000 per carat

Jeremejevite (Credit: Gem Rock Auctions) 

inRead invented by Teads


Jeremejevite (Al6B5O15(F,OH)3)  is an aluminum bearing borate mineral with associated fluoride and hydroxide. It was first found in the Adun-Chilon Mountains in Siberia in 1883. This gem has a similar hardness as quartz, 6.5 to 7.5 on the Mohs scale, and therefore is ideal for jewelry making.


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http://www.forbes.com/sites/trevornace/2015/11/02/12-most-expensive-gemstones-world/#225e86b75342



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