Flash Rocks

$7.50
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Delivery time: Local Delivery: next day delivery Monday-Friday! Curbside Pickup: Ready Tomorrow at 1725 N Swan (just wait for an email)! USPS Shipping: 7-9 business days!

One of the few minerals with piezoelectric properties, quartz, when subjected to mechanical stress, generates an electrical charge! Put a rock in each hand and really rub the rocks together. To see the glowing electrical effect fully, you should do this in a darkened room.

Made in the USA!