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Mineral Triboluminescence

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Minerals : Oxides - Corundum

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Minerals with Willsey: Hematite, Magnetite, Galena, and Pyrite

10:02

Magnetism in Gemstones

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Cleavage and Fracture

6:18

Magnetism in Rocks

4:47

3 incríveis aceleradores magnéticos | Magnetic Games

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Mineral Fluorescence