The 10 Most Expensive Minerals in the World

Added by BestEssays on Dec 9, 2013

9 Diamond

Diamond is commercially the most popular mineral because of its eminent role in the world of jewelry trading. The average value of this prestigious, alluring mineral is approximately $55,000 per gram.

8 Black Opal

Approximately 95% of all supplies of black opal are harvested in Australia, therefore this mineral is also known as the national gemstone of Australia. Black Opal has been also mined in Brazil, Ethiopia, Mexico and the United States. The average value of this mineral is $2.350 per carat.

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