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Quiz about The Hardest Thing in the World

Quiz - The Hardest Thing in the World

Gems and Birthstones

Quiz #341,230.
10 qns, rated Difficult.
By dcpddc478
 
gold Diamonds are known as the hardest naturally occurring substance on the earth. The term GIA that may be found in some questions refers to the Gemological Institute of America, which is considered to be the world's foremost authority on the grading of gems

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Category: Fun Trivia: Quizzes: General: Gems and Birthstones Rank: 20778 of 111000 fun
Placed online: Aug 29, 2011
Times played: 540 - Rated: 92 times
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