WHAT'S INSIDE? DISSOLVING A ROCK WITH VINEGAR TO EXPOSE CRYSTALS
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What's inside the Apatite Crystal Pocket?
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HOW TO CLEAN CRYSTALS with Oxalic Acid | Cheap & Simple DIY Mineral Cleaning
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I Can't Believe This Worked So Well! | Vinegar Gold
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Cleaning rocks with different acids (Finding Gold specimens!)
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Polishing Rocks with hand held Polisher/Sander - Part 2, a more detailed look
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Rock Identification with Willsey: BASALT and its many varieties
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Me enviaron piedras por correo... ¡Cortémoslas para abrirlas!
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