Gemstones

Mineralogist Answers Gemstone Questions From Twitter | Tech Support | WIRED

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Where does gold come from? - David Lunney

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Understanding Minerals

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Can you GROW an Opal?

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HOW TO TELL IF SAPPHIRE IS FAKE?

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How are diamonds made?

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How This Guy Clones Famous Diamonds | Obsessed | WIRED

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The Mineral From Space That’s Harder Than Diamond

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