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Tag: gemstones

Guest Videos: Aquamarine

July 3, 2018 BJ Deming

Aquamarine is a beryllium mineral like bertrandite or beryl, but its chemical formula is slightly different. Who would suspect that the addition of a little

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Metamorphic Gem: Garnet

March 20, 2018 BJ Deming

Update, August 12, 2018: Thai food is delicious–why do these little endoliths feel they need to chow down on garnets? Mantle gems include diamonds and

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Guest Video: Peridot, A Mantle Gem

March 7, 2018 BJ Deming

Diamonds aren’t the only mantle-associated gems. Most of the upper mantle is made out of peridotite, a combination of olivine and pyroxene. It is named after the very famous gemstone it contains–peridot.

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Guest Video: Mining Zircons in Cambodia

February 8, 2018 BJ Deming

Watch as red zircons are dug out of the soil in Ratanakiri, Cambodia, and turned into sky-blue gemstones by heat treatment in somebody’s back-yard mini-furnace.

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Top Posts & Pages

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  • The Gold and Emeralds of Ancient Egypt
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  • Guest Video: Goodbye, Opportunity

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