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Hidden gemstones await in this National Geographic Starter Rock Tumbler Kit. The young geologist in your life will be fascinated by the process of ...

This Purple Crystal Growing Kit includes: Growing powder, seed rock, and stir stick for your experiment Genuine purple amethyst specimen to add to...

4M deluxe crystal growing combo steam science kit. Create your own stunning crystal collection! Follow simple steps to grow over 10 crystals includ...