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Andrew Alden

This Week's Geo-Quiz: Gemstones

By December 22, 2013

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Gemstones are a topic of wide interest, because so many of us wear, give, mount in jewelry or just crave them. But the geological aspects of gemstones—well, that's a matter for the experts I challenge with this quiz: Geo-Whizzes. Are you one? If so, you won't need to simply shine your way through the Geo-Whiz Quiz on gemstones.

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