Gemstones
Mineralogist Answers Gemstone Questions From Twitter | Tech Support | WIRED
VIDEO
15 min read
Where does gold come from? - David Lunney
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3 min read
Understanding Minerals
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8 min read
Can you GROW an Opal?
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28 min read
HOW TO TELL IF SAPPHIRE IS FAKE?
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8 min read
How are diamonds made?
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5 min read
How This Guy Clones Famous Diamonds | Obsessed | WIRED
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8 min read
The Mineral From Space That’s Harder Than Diamond
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7 min read