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Flash Rocks

  • $5.00
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Flash Rocks

  • $5.00

 

Rub our Flash Rocks together to see a totally natural piezoelectric rock show! They'll glow internally and emit a distinctive odor! If you're lucky... someday soon you will be holding electric potential in your hands, so you can see for yourself.  Flash rocks - aka quartz - are one of the few minerals with piezoelectric proprieties.  So, when subjected to mechanical stress, these two little rocks generate an electrical charge. Just place a rock in each hand, and forcefully rub the rocks together. To see the glowing electrical effect fully, you should do this in a darkened room. Also, note the distinctive odor given off by the frictions.