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Einstein Tubes – Alum Crystals

PUR6055
$9.99 UNIT

Alum crystals are colorless, non-toxic, and easy to grow.

Learn how to make them! Expect the growth of a large crystal to take days or even a few weeks.
  • Number of players: 1
  • For children ages 8 and up

U - UNIT

Delivery 3 to 10 days
0 in stock*
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