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Flash Rocks

Flash Rocks

Compact Curiosity

Flash rocks, also known as quartz, are one of the few minerals with piezoelectric properties. When subjected to mechanical stress, these two little rocks generate an electrical charge. Hold a rock in each hand and forcefully rub them together. To see the glowing electrical effect fully, you should do this in a darkened room. The friction also gives off a distinctive odor. Not for children under 3 years.


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