flashRocks.png
flashRocks.png

Flash Rocks

$2.40 $5.00
sale

Knock these rocks together for an electrical effect. Flash rocks are one of the few minerals with piezoelectric properties. So, when subjected to mechanical stress, these two little rocks generate an electrical charge and glow! From Copernicus Toys.

Made in USA

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Knock these rocks together for an electrical effect. Flash rocks are one of the few minerals with piezoelectric properties. So, when subjected to mechanical stress, these two little rocks generate an electrical charge and glow! From Copernicus Toys.

Made in USA

Knock these rocks together for an electrical effect. Flash rocks are one of the few minerals with piezoelectric properties. So, when subjected to mechanical stress, these two little rocks generate an electrical charge and glow! From Copernicus Toys.

Made in USA

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